The quantity of electrical energy released is a function of the quantity of energy coming from the energy source (low vs. high). The system will release (A) more (B) less energy depending on how much energy is introduced into it.
What is the use of electrical energy in the system?The rotor shaft of a generator is spun or rotated by the fluid's force on the blades. The generator then transforms the kinetic (mechanical) energy of the rotor into electrical energy.
Turbines come in a variety of forms, including steam, combustion (gas), hydroelectric, and wind turbines.
At the scale that a large utility would use them, solar and wind power are currently the least expensive sources of energy. They are much less expensive than coal and nuclear power plants and slightly less expensive than natural gas-fired power plants.
Therefore, Depending on how much energy is supplied into the system, it will either (A) release more (B) or less (C).
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Consider the chemical equation in equilibrium.
2H₂(g) + O₂(g) → 2H₂O(g)
What will happen if the pressure of the system is increased?
If the system's pressure is increased, the equilibrium will shift in the direction that decreases the total number of gas molecules in the system.
How does changing pressure affect the equilibrium?The effect of changing pressure on an equilibrium depends on the reaction's stoichiometry and the total number of moles of gas present in the system. For example, if the reaction produced more gas molecules on the product side, an increase in pressure would shift the equilibrium to the left, in the direction of the reactants.
What is stoichiometry?Stoichiometry is a branch of chemistry that deals with calculating the quantities of reactants and products involved in a chemical reaction. In any chemical reaction, the reactants combine to form products according to a specific chemical equation that shows the reaction's stoichiometry.
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Use Kinetic Molecular Theory to describe the effect of adding a gas to a container that cannot expand.
A) An increase in the number of gas particles in the container decreases the average energy of each particle and decreases the temperature of the gas.
B) An increase in the number of gas particles in the container causes the container to break.
C) An increase in the number of gas particles in the container only increases the number of moles but
does not change the behavior of the gas.
D) An increase in the number of gas particles in the container increases the number of collisions with the walls and increases the pressure of the gas.
Solving the Question
A) Incorrect. It is not guaranteed that adding gas particles to the container will decrease the kinetic energy, as we don't know what energy those particles have to begin with.
B) Incorrect. We are not given any information that reveals that the container will break.
C) Incorrect. Because there are more particles, more collisions will occur in the container, increasing the likelihood that bonds may form between particles. This deviates from ideal gas behaviour.
D) Correct. Adding particles will increase the number of collisions that occurs as well as the overall pressure.
AnswerOption D
2. The energy of an electron in the first orbit in hydrogen atom is-313.6/m² kcal mol. What will be the energy of the electron in 3rd orbit?
The energy of an electron in the third orbit in a hydrogen atom is -3.4 eV.
Answer:
34.8/m² kcal mol
Explanation:
The energy of an electron in an orbit in a hydrogen atom is proportional to the reciprocal of the square of its orbital number. Therefore, the energy of an electron in the 3rd orbit can be calculated as follows:
Energy (3rd orbit) = Energy (1st orbit) * (1/3)^2
Energy (3rd orbit) = 313.6/m² kcal mol * (1/9)
Energy (3rd orbit) = 34.8/m² kcal mol
So the energy of an electron in the 3rd orbit of a hydrogen atom is 34.8/m² kcal mol.
ALLEN
3. In chemistry, a structural isomer of a compound is another compound whose molecule has the same number of atoms of each element, but with logically distinct bonds between them. Consider an alkene compound. Draw all possible structural isomers for an alkene with a molecular formula C6H12.
[4 marks]
All the possible structural isomers for the molecular formula C₆H₁₂ are given here. All of them has the same number of carbon and hydrogen atoms but with different structures.
What are structural isomers ?Isomers are compounds with the same chemical formula but different structures, spatial conformation, geometry, functional groups etc. There are are different kinds of isomers.
Structural isomers are compounds with same formula but different structures. In the case alkanes, alkenes or alkynes, the position of the branches or groups attached can be of different but formula stay the the same.
Here, the compound with the formula, C₆H₁₂ have structures similar of alkenes and can have ring structures as shown in the image. The position of the double bond or the branches are different in each isomers.
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what is the waist material liquid that is formed in the kidneys
Answer: Urine
Explanation: The kidneys are the organs that clean the blood stream, they filter about a half cup of blood every minute and they remove waste and extra unnecessary water from the blood stream, with this they produce urine that would be later expelled from the body.
17. An organic scid is used to improve tie nutrient content of crops. It is composed of
40.91% carbon, 4.545% hydrogen, and 54.54% oxygen. The molar mass of ascorbic acid is 264.21 g/mol. Determine the empirical and molecular formulas for this organic acid.
Answer: it is C
Explanation:
c
Which type of formula describes the actual number of each element in a molecule or
compound?
Answer:
that's molecular
Molecular formula
2H2(g) + O2(g) → 2 H₂O(g)
How many liters of H2 are required to produce a total of 2 moles of H2O at STP?
Taking into account the reaction stoichiometry, the volume of H₂ required is 44.8 L.
Reaction stoichiometryThe balanced reaction is:
2 H₂ + O₂ → 2 H₂O
By reaction stoichiometry (that is, the relationship between the amount of reagents and products in a chemical reaction), the following amounts of moles of each compound participate in the reaction:
H₂: 2 moles
O₂: 1 mole
H₂O: 2 moles
STP conditionsThe STP conditions refer to the standard temperature and pressure, which values are 0 °C and 1 atmosphere as a reference values for gases. In these conditions 1 mole of any gas occupies an approximate volume of 22.4 liters.
Volume of H₂ requiredTo calculate the number of moles of O₂ required, you can observe the stoichiometry of the reaction. By reaction stoichiometry 2 moles of H₂O are formed by 2 moles of H₂.
Now, you can apply the following rule of three: if by definition of STP conditions 1 mole of H₂ occupies a volume of 22.4 liters, 2 moles occupies how much volume?
volume= (2 moles× 22.4 L)÷ 1 L
volume= 44.8 L
Finally, 44.8 L of H₂ are needed.
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Add electrons and the charge for the resulting radical
cationic intermediate, and add curved arrows for the
a-cleavage mechanism en route to m/z 43.
Electrons are negatively charged subatomic particles that orbit the nucleus of an atom. They are essential for chemical reactions, as they participate in the formation and breaking of chemical bonds. The appropriate diagram relating to the question is attached.
How to convey the informationA radical is a molecule or atom that contains one or more unpaired electrons. Radicals are highly reactive and can participate in a wide range of chemical reactions, such as combustion, polymerization, and oxidation.
A cationic intermediate is a positively charged species that forms during a chemical reaction. It is an intermediate state between the starting materials and the final products, and it is typically short-lived. Cationic intermediates can be formed by the loss of an electron or by the addition of a proton or other positively charged species.
Check the attachment.
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Which system was developed to extinguish fires in commercial cooking operations, reducing the temperature of the burning liquid?a. Wet chemical extinguishing systemb. Combination systemc. Dry pipe systemd. Wet barrel hydrant
The system developed to extinguish fires in commercial cooking operations, reducing the temperature of the burning liquid is the "wet chemical extinguishing system".
This system is specifically designed to suppress fires that start in deep fryers and other cooking appliances commonly found in commercial kitchens. The wet chemical extinguishing system is a specialized fire suppression system that uses a specially formulated liquid agent to extinguish fires by cooling the fuel and preventing re-ignition. The liquid agent is discharged in a fine mist, which blankets the burning fuel and cools it to below its ignition temperature. This helps prevent the fire from spreading and re-igniting, and reduces the potential for injury or property damage. Other fire suppression systems temperature that are commonly used include the combination system, which combines wet chemical and dry chemical agents, the dry pipe system, which is a type of sprinkler system that uses pressurized air to prevent water from entering the pipes until a fire is detected.
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9. A brand of gasohol (gasoline containing alcohol)
contains 10.% ethanol by volume. How many
milliliters (mL) of ethanol are in a 0.750-gallon
sample of the gasohol? (1 gall = 3.785 L)
(A) 283.875 mL
(B) 280 mL
(C) 0.284 mL
(D) 2.8 x 10-4 mL
283.875 mL of ethanol are in a 0.750gallon sample of the gasohol. Therefore, the correct option is option A.
What is ethanol?Ethanol, sometimes known as ethyl alcohol, is a chemical liquid having the formula C2H5OH. Its primary application is as a solvent. To comprehend the chemical composition of ethanol, you must first grasp what alkenes are.
Alkenes are carbon and hydrogen molecules containing at at least one double bond between two carbons. Ethene is an example of an alkene.
1 gall = 3.785 L
0.750gallon =?
0.750gallon ×3.785 L / 1 gallon
= 2838.75 ml
10% of 2838.75 ml= 283.875 mL
Therefore, the correct option is option A.
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Metallic magnesium reacts with steam to produce magnesium hydroxide and hydrogen gas.
Mg (s) + 2 H2O (g) → Mg(OH)2 (aq) + H2 (g)
If 16.2 g Mg are heated with 12.0 g H2O, what is the limiting reactant?
How many moles of the excess reactant is left?
How many grams of each product are formed? (you need to give 2 answers)
As determined by the stoichiometry, water is the limiting reactant, and 4.2 moles of the excess reactant are still present after the formation of 39.35 g of magnesium hydroxide and 1.35 g of water.
What does stoichiometry mean?In a chemical process, it is the estimation of the ratios of the constituent elements or molecules. The underlying laws of the associated relationships are the law of conservation of mass and the law of combining weights and volumes.To determine the amounts of different compounds contained in the sample, stoichiometry is employed in quantitative analysis.Water is a limiting reactant since it is present in such small amounts, and according to the chemical equation, there are 16.2 12 = 4.2 moles of excess reactant.16.2 g will result in 16.258.31/24=39.35 g and 24 g of magnesium hydroxide since 24 g of magnesium yields 58.31 g of magnesium hydroxide.Since magnesium yields 2 g of hydrogen, 16.2 g will result in 16.22/24=1.35 g.For more information on limiting agent kindly visit to
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Complete combustion of 2.10 g
of a hydrocarbon produced 6.47 g
of CO2
and 2.98 g
of H2O.
What is the empirical formula for the hydrocarbon? Insert subscripts as necessary.
Answer:
C1H1
Explanation:
The empirical formula of a hydrocarbon can be determined by analyzing the products of its combustion reaction. To do this, we first need to convert the masses of CO2 and H2O produced to moles. The number of moles of CO2 is 6.47 g / 44.01 g/mol = 0.1469 mol. The number of moles of H2O is 2.98 g / 18.02 g/mol = 0.1654 mol.
Next, we can use the number of moles of CO2 and H2O to determine the number of moles of carbon (C) and hydrogen (H) present in the original hydrocarbon. The balanced equation for the combustion of a hydrocarbon is:
CxHy + (x + y/4)O2 -> xCO2 + (y/2)H2O
Since one mole of CO2 is produced from one mole of carbon in the hydrocarbon, the number of moles of carbon is equal to the number of moles of CO2: 0.1469 mol.
Since two moles of H2O are produced from one mole of hydrogen in the hydrocarbon, the number of moles of hydrogen is equal to half the number of moles of H2O: 0.1654 mol / 2 = 0.0827 mol.
Finally, we can divide each number of moles by the smallest number of moles to obtain the mole ratio. In this case, both carbon and hydrogen have the same number of moles, so the mole ratio is 1:1.
C = 0.1469 mol / 0.1469 mol = 1
H = 0.0827 mol / 0.1469 mol = 0.56
The empirical formula for the hydrocarbon is C1H0.56, which can be simplified to C1H1 by rounding the subscript to the nearest whole number. The empirical formula for the hydrocarbon is therefore C1H1.
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See question in the picture below , will give brainliest for correct answer
Answer:
See Below
Explanation:
If my math is correct then this should be balanced
3Fe + 4H2O -> Fe3O4 + 4H2
Answer: 3Fe + 4H2O ---> 1Fe3O4 + 4H2
Fe : 3 : 3
H : 8 : 8
O: 4 : 4
When 50 grams of KCI is dissolved in water at 50 °C, the solution
can be correctly described as:
The solution is supersaturated from the solubility curve shown.
What is the solubility curve?A solubility curve is a graphical representation of the relationship between the solubility of a substance and temperature. It shows how the solubility of a solid solute (e.g., salt, sugar) changes with temperature in a given solvent (e.g., water).
A solubility curve is typically plotted with solubility on the y-axis and temperature on the x-axis. The curve generally slopes upward, meaning that as the temperature increases, the solubility of the solute in the solvent also increases. This is because higher temperatures increase the energy of the solvent and solute particles, making it easier for them to dissolve and form a homogeneous solution.
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Missing parts:
When 50 grams of potassium chloride KCI is dissolved in 100 grams of water at 50 C the solution can correctly be described as
A unsaturated
B saturated
C supersaturated
Anyone completed this?
Construct a device to regulate the release of energy
Types of Chemical Reactions
Project: Thermal Energy and Chemical Reactions
Instructions
Click the links to open the resources below. These resources will help you complete the assignment. Once you have created your file(s) and are ready to upload your assignment, click the Add Files button below and select each file from your desktop or network folder. Upload each file separately.
Your work will not be submitted to your teacher until you click Submit.
Chemical reactions as well as thermal energy regulate release of energy. The steps are given below.
Reactions The water held at room temperature for 15 seconds before the activation, which involved smashing the pills, proving that the gadget regulated the activation. With the calcium chloride dissolving in the water, the temperature increased by 30° over the course of two minutes.Give a quart bag 5mL of water. Thermometer should be placed inside the bag to create contact. Two gelatin 000 capsules should each contain 1 gram of calcium chloride. the package with the capsules.If the capsules are submerged in water, wait 15 seconds before crushing them.-Temperature
0.00 seconds seventy five degrees
15 seconds; activation at 75 degrees
thirty second 86 degrees
One minute a temperature of 95
90 second at 104 degrees
For one minute 95 degrees
A reaction uses thermal energy from the source to produce a product.
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When you measure the solubility of a solute you must use the same ___ and type of solvent at given____
Answer:
It should be temperature, concentration
In the first 13. 0 s of the reaction, 0. 018 mol of o2 is produced in a reaction vessel with a volume of 0. 380 l. What is the average rate of the reaction during this time interval?.
Answer:
the answer is 5
Explanation:becuase it is great for the society
what happens when nitrobenzene is reduced in acidic nutral and alkaline medium
Answer:
In a weakly acidic medium, nitrobenzene on electrolytic reduction gives aniline but under strongly acidic medium it gives p-aminophenol. In the alkaline medium, various mono and di-nuclear reduction products such as Azoxybenzene, Azobenzene are obtained.
Drag each item to the correct location to indicate whether it is a greenhouse gas or a non-greenhouse gas.
It is a greenhouse gas. The greenhouse effect is caused by the absorption by the surface of the Earth and re-absorption by the atmosphere of the greenhouse gases (CH₄, CO₂, NO, CFCs ) in the environment.
What is the greenhouse effect?
The greenhouse effect is a natural process by which certain gases in the Earth's atmosphere, known as greenhouse gases, trap heat from the sun and prevent it from escaping into space. The greenhouse gases, which include carbon dioxide, methane, water vapor, and others, act like a blanket around the Earth, absorbing and re-emitting infrared radiation that would otherwise be lost to space. This process helps to keep the Earth's temperature within a range that is suitable for supporting life. However, human activities such as burning fossil fuels have increased the concentration of greenhouse gases in the atmosphere, leading to an enhanced greenhouse effect and causing the Earth's temperature to rise, a phenomenon known as global warming.
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The complete question and the labelled answer respectively, is as follows:
the set of positions occupied by the three oxygen atoms
The three oxygen atoms can occupy three distinct positions in space. These positions can be identified by their coordinates in three-dimensional space.
What is the space?The space is an area or volume that exists between two or more objects, areas, or surfaces. In scientific terms, it is the distance between two points in three-dimensional space. It can also refer to a gap between two events, feelings, or other entities. In mathematics, space is a measure of the dimensionality of a given set, which can be described as the number of degrees of freedom within a given set. In physics, space is the physical realm of existence that encompasses all matter and energy. It is a fundamental component of reality and the universe.
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For the reaction below, how many moles of aluminum are produced from 14 moles of
lithium?
3Li (s) + AI(NO3)3 (aq) --> 3LINO3(aq) + Al(s)
Answer:
4.67 moles of aluminum
Explanation:
For the reaction:
3Li (s) + AI(NO3)3 (aq) --> 3LiNO3(aq) + Al(s)
The number of moles of aluminum produced from 14 moles of lithium can be determined by using the mole ratio between aluminum and lithium in the balanced chemical equation. The mole ratio between aluminum and lithium in the reaction is 1:3, which means that for every 3 moles of lithium, 1 mole of aluminum is produced. Therefore, the number of moles of aluminum produced from 14 moles of lithium can be calculated as follows:
14 moles of Li / 3 moles of Li per mole of Al = 4.67 moles of Al
So, 14 moles of lithium will produce 4.67 moles of aluminum.
5. What are the grams of Aluminum Sulfate if
2.50 grams of Copper (II) sulfate reacts with
aluminum? (Hint this is your theoretical yield)
Answer:
In order to calculate the theoretical yield of Aluminum Sulfate in this reaction, you would need to know the balanced chemical equation for the reaction between Copper (II) Sulfate and Aluminum.
Without that information, it is not possible to determine the amount of Aluminum Sulfate that would be produced from 2.50 grams of Copper (II) Sulfate.
Explanation:
A student burns 1. 50 mol c3h8 according to the following reaction: c3h8 + 5o2 3co2 + 4h2o. How many grams of carbon dioxide are produced? (molar mass of co2 = 44. 01, molar mass of c3h8=44. 11).
Answer:it is 5 square c
Explanation:
because c is the best
What is the wavelength of the microwaves that cook your food?
12,000 cm
120 cm
2 cm
12 cm
Using the table below, what is the color (we observe) of chlorophyll b if the pigment absorbs light at 460 nm?
Yellow is the correct answer .
What is Chlorophyll?
Chlorophyll is a green pigment that is essential for the process of photosynthesis in plants, algae, and some bacteria. It absorbs light energy from the sun and converts it into chemical energy, which is then used to produce organic compounds that the organism can use for energy and growth. Chlorophyll is found in specialized organelles called chloroplasts, which are present in the cells of photosynthetic organisms. There are several types of chlorophyll, but the most common types found in plants are chlorophyll a and chlorophyll b. Chlorophyll is also responsible for the green color of leaves and other photosynthetic tissues.
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Using the equipartition theorem, determine the molar specific heat,Cv, of a gas in which each molecule has degrees of freedom γ .
Express your answer in terms of R and γ.
The molar specific heat, Cv, of a gas in which each molecule has degrees of freedom γ is [tex]C_v= (s*r)/2 J/mol*K[/tex]
The molar heat capacity of a chemical substance is the quantum of energy that must be added, in the form of heat, to one operative of the substance in order to beget an increase of one unit in its temperature.
Alternately, it's the heat capacity of a sample of the substance divided by the quantum of substance of the sample; or also the specific heat capacity of the substance times its molar mass. The SI unit of molar heat capacity is joule per kelvin per operative, JK⁻¹
The largest number of logically independent values—that is, values with the freedom to change—in the data sample is referred to as the degree of freedom. If there is a remaining requirement for the data sample, particular data sample items must be picked after the degrees of freedom quantity has been decided.
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Complete question:
Thermodynamics deals with the macroscopic properties ofmaterials. Scientists can make quantitative predictions about thesemacroscopic properties by thinking on a microscopic scale. Kinetictheory and statistical mechanics provide a way to relate molecularmodels to thermodynamics. Predicting the heat capacities of gasesat a constant volume from the number of degrees of freedom of a gasmolecule is one example of the predictive power of molecularmodels.
The molar specific heatC_vof a gas at a constant volume is thequantity of energy required to raise the temperatureTof one mole of gas by one degree while thevolume remains the same. Mathematically,
[tex]C_{\rm v}= \frac{1}{n}\,\frac{dU}{dT},[/tex]
wherenis the number of moles of gas,dUis the change in internal energy, anddTis the change in temperature.
Kinetic theory tells us that the temperature of a gas isdirectly proportional to the total kinetic energy of the moleculesin the gas. The equipartition theorem says that each degree offreedom of a molecule has an average kinetic energy equal to[tex]\frac{1}{2}k_}{\rm BT[/tex], wherek_Bis Boltzmann's constant[tex]1.38 \times 10^{-23} \rm {J/K}[/tex] . Whensummed over the entire gas, this gives[tex]\frac{1}{2}nR[/tex]T, where [tex]R=8.314\; {\rm \frac{J}{mol\cdot K}}[/tex] is the ideal gas constant, for each molecular degree offreedom.
Part A
Using the equipartition theorem, determine the molar specific heat,C_v, of a gas in which eachmolecule hassdegrees of freedom.
Express your answer in terms ofRands.
Part B
Given the molar specific heatC_vof a gas at constant volume, you candetermine the number of degrees of freedomsthat are energetically accessible.
For example, at room temperature cis-2-butene,\rm C_4 H_8, has molar specific heat [tex]C_v=70.6\;{\rm \frac{J}{mol \cdot K}[/tex]}. How many degrees of freedom of cis-2-butene areenergetically accessible?
Express your answer numerically to the nearest integer.
Calculate the number of carbon atoms in a 140.0 g sample of glucose (C6H1206).
Be sure your answer has a unit symbol if necessary, and round it to 4 significant digits.
There are 2.81 × 10^24 moles number of carbon atoms in a 140.0 g sample of glucose (C6H1206).
What is molar mass ?The term molar mass of a substance is defined as the mass in grams of one mole of the compound. In a substance, the amount of entities present e.g., atoms, molecules, ions. A mole of any substance is 6.022×10²³ molecules.
To calculate, we need to know the number of moles present in 140 grams of carbon.
number of moles = mass/molar mass
molar mass of glucose is = 180 g/mol
Therefore, the number of moles will be ;
140/180 = 0.7778 mole
1 mole of glucose contains 6 moles of carbon;
Then, 0.7778 moles will contain = 4.667 moles
the number of atoms in 1 mole is 6.02 × 10^23 atoms
The number of atoms in 4.667 moles will be :
4.667 × 6.02 × 10^23
= 2.81 × 10^24 atoms
Thus, 2.81 × 10^24 moles number of carbon atoms in a 140.0 g sample of glucose (C6H1206).
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Assume that the average turkey egg contains 10% greater mass percent of York .How many grams of yolk are contained in a turkey egg that weighs 84.37g
The average turkey egg contains 10% more yolk than other types of eggs. Therefore, the amount of yolk in a turkey egg that weighs 84.3 grams can be calculated by multiplying the egg weight by 0.1 (10%).
What is the calculated ?Calculations are a process of solving problems by using mathematical or logical operations and formulas. Calculations are used in many areas of life and in many different fields of study. In mathematics, calculations are used to solve equations, find the value of an unknown variable, and to help analyze data. Calculations are also important in science, engineering, economics, business, and other disciplines. By using calculations, we can determine relationships between variables and use those relationships to make predictions and decisions.
The amount of yolk in this egg is 8.43 grams (84.3 x 0.1 = 8.43).
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Which number line represents the solution set for inequality 3x<-9 ?
A number line with 0 in the center and circle -3 to the left of it represents the solution set for inequality 3x<-9.
What is number line?A number line is a depiction of a graded single direction that serves as a visual representation of real numbers in primary mathematics. Every point on a number line is believed to correspond to something like a real number, and so every specific number to a point.
Given that the inequality is 3x-9,
Because 3 is a positive number, we may divide this discrepancy by 3 without affecting the less than sign.
i.e. x<-9/3
Or x<-3
Because -3 is strictly less than, we must have a hole at -3. (excluding -3)
Because there is a less than indication, the region on the number line to the left of -3 has a hole at -3.
Therefore, a number line with 0 in the center and circle -3 to the left of it represents the solution set for inequality 3x<-9.
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