Answer:
Let's look at another example: 3/4 is the same as 6/8. How do you know this to be true? The proof is in the pie chart diagram. The top circle has 3 out of the 4 parts shaded in. The bottom circle has 6 of the 8 parts shaded in. However, both fractions refer to the same part of the circle.
You can check your results by dividing. Here, both the numerator (6) and the denominator (8) are divisible by 2.
Finding 2nd Fraction Numerators
What would happen if a numerator were missing? Well, if you're given two fractions and told that they are equivalent fractions, you can find the missing numerator using multiplication or division.
In all equivalent fractions, both the numerator and denominator of the first fraction can be multiplied by the same number to get the numerator and denominator of the second fraction.
Say one of the numerators was missing from those pie chart equations:
3 / 4 = x / 8
You can see that there is an x alongside one of the numerators. That represents the number you are trying to find.
The answer lies in discovering what the first denominator can be multiplied by to get the other denominator. You might be good enough at your times tables to know that 4 times 2 is 8. But you can also check this number by dividing the denominator (8) by the denominator (4), which equals 2.
easy one! giving brainly if correct
Answer: glass is not considered as solute.
Extra's:
A solute is a substance that gets dissolved in a solvent. ... The solutes in air are oxygen, argon, and carbon dioxide gas, as well as water vapour.
Sugar is a solute in the solvent water. Sugar is one of the most soluble solutes in water.
Also solute is a powder that can be dissolved in solvent like water. here baking soda is a solute.
morning everyone what's the difference between homogenous mixture heterogeneous mixture
Answer:
why did you choose to unfollow all of your followers including my previous account
1. How many moles are in 7.32 x 10^24 atoms of iron?
Answer:
I believe about 10 moles
Explanation:
Can I have help on this?
Answer:
H20
Explanation:
The acronym (I) used means it is liquid.
hope this helps
Choose from Blood tests vs Breath tests to answer the following questions about Blood
Alcohol Concentration (BAC) analysis.
Which type of BAC test is more accurate? (Blood/Breathe)
Which type of BAC test can be administered more quickly and is more portable?
(Blood/Breath)
Which type of BAC test is used more often in the field? (Blood/Breath)
Answer:
Which type of BAC test is more accurate :- Blood
Which type of BAC test can be administered more quickly and is more portable :- Breath
Which type of BAC test is used more often in the field :- Breath
I hope it helps.
For the acids, use the formula pH=-log[H^ + ], (Because HCI has 1H^ + ion per formula unit, [H^ + ] equals the molarity.) For water, use what you know about the pH of neutral solutions. For the bases, examine and extend the pattern
The pH of a solution is calculated using the formula; pH = - log[H+] and water has a pH of 7.
What is pH is a solution?The pH of a solution is the negative logarithm to base ten of the hydrogen ions concentration of the solution.
pH = - log[H+]Where
[H+] is the hydrogen ions concentration.For example, the pH of a 0.1 M HCl solution is calculated as follows:
[H+] of HCl = 1 × 10^-1
pH = - log (1 × 10^-1)
pH = 1
What is the pH of water?Water is a neutral solution. It has pH of 7.
Therefore, the pH of a solution is calculated using the formula; pH = - log[H+] and water has a pH of 7.
Learn more about pH at: https://brainly.com/question/172153
Answer:
First one is 1, then +2 for the rest.
Explanation:
0.1 M HCI = 1
0.001 M HCI = 3
0.00001 M HCI = 5
Distilled water = 7
0.00001 M NaOH = 9
0.001 M NaOH = 11
0.1 M NaOH = 13
I got it wrong so ya'll could get it right x3
predict product of AlBr3 + Mg2N3
Answer:
2AlBr3 + Mg2N3 -------> 2AlN + 3MgBr2
Aluminum Nitride and Magnesium Bromide are the products of this reaction
1. A loaf of bread has a volume of
2270cm and a mass of 454g. What is
the density of the bread?
Answer:
0.2 g/cm^3
Explanation:
Density = Mass/Volume
Density = 454g/2270cm^3
Density = 0.2 g/cm^3
Kinetic energy is energy an object has because of its:
Question 1 options:
composition
position
density
motion
Answer:
I think its Motion
Explanation:
2 factors that can decrease the amount of erosion
Answer:
Increasing the amount of plant cover on a slope and adding organic matter to the soil are two ways to decrease soil erosion.
What is the name of the positively charged subatomic particle?.
Answer: Protons
Explanation: The nucleus contains two types of subatomic particles, protons, and neutrons. The protons have a positive electrical charge and the neutrons have no electrical charge.
495 kJ/mol, 467 kJ/mol, 146 kJ/mol
Which one is stronger? I have such a hard time with these. Why is one stronger than the rest?
Answer:
Strongest bonds and weakest bonds
According to BDE data, the strongest single bonds are Si−F bonds. The BDE for H3Si−F is 152 kcal/mol, almost 50% stronger than the H3C−F bond (110 kcal/mol). The BDE for F3Si−F is even larger, at 166 kcal/mol. i hope this helps!
ExplanationExplanationExplanation:
How many moles are in 216.6 g of methanol (CH3OH)
We are given –
Mass of [tex] \bf CH_3OH[/tex] is 216.6 g and we are asked to find number of moles present in 216. 6 g of [tex] \bf CH_3OH[/tex][tex]\qquad[/tex][tex] \pink{\bf\longrightarrow { Molar \:mass \:of \: CH_3OH:-} }[/tex]
[tex]\qquad[/tex][tex] \bf \twoheadrightarrow 12+ 1\times 3 +16+1 [/tex]
[tex]\qquad[/tex][tex] \bf \twoheadrightarrow 32[/tex]
[tex]\qquad[/tex]____________________
Calculating the number of moles present in 216.6 g of [tex] \bf CH_3OH[/tex]
[tex]\qquad[/tex][tex] \purple{\sf\longrightarrow { No \:of \:moles = \dfrac{Given \:mass}{Molar\: mass}}}[/tex]
[tex]\qquad[/tex][tex] \bf \twoheadrightarrow \dfrac{216.6}{32}[/tex]
[tex]\qquad[/tex][tex] \bf \twoheadrightarrow \cancel{\dfrac{216.6}{32}}[/tex]
[tex]\qquad[/tex][tex] \bf \twoheadrightarrow 6.768\: moles[/tex]
__________________________________
Amanda dissolves some sugar in water in a beaker. She allows the water to evaporate and notices that solid sugar remains in the bottom of the beaker. What two pieces of evidence can be provided to show that this is a physical change?
Answer:
evaporation means the state of the water went from liquid to gas which is a physical change. the sugar is still in the beaker which means its chemical properties did not change.
Explanation:
What is the change from a gas to a liquid called? What kind of change is this?
Why do I always resort to brainly when I know it's kind of wrong-ish........?
The answers are rarely correct and the system is pretty faulty. Is anyone else addicted for no reason? This is for a "Science research project"
Answer:
Because the thought of self-doubt and lack of confidence is getting to you. Other people most likely have the same issue that you do.
Explanation:
Answer:
i like to use it so i can find out new things, my dad thought me that by teaching you learn more, but when it comes to getting answers i put out a few of the same question and if 2 ppl give the same answer i use that one. the reason why i use brainly is because i have looked everywhere and cant find the answer this way even if its wrong it looks like i tried. i hopes that helps
If a substance were broken down into 2 different gasses; such as water (H₂0) being broken down to Hydrogen (H₂) and Oxygen (O), it is considered to be which type of change? Physical or Chemical?
Answer:
Chemical change
Explanation:
The products of this reaction are not the same chemical structure from which they came. Bonds were broken and reformed in the process - a chemical reaction. The products do not behave like the reactant(s).
4. What is the molar mass of NO?
Answer:
Nitrogen is a chemical element that has the symbol N and atomic number 7 and atomic mass 14.00674µ.
Explanation:
Answer:
30g/mol
Explanation:
Nitrogen has mass number of 14
Oxygen has mass number of 16
Molar mass = 14+16=30g/mol
PLEASE HELP A SIS OUT
Equation: CsH12(g) + 8 O2(g) → 5 CO2(g) + 6 H2O(g)
If 6.31 g of CsH12(g) is added to 20.2 g of O2(g), what mass of H2O(g) is produced?
Answer:
You can look it up on the internet.. Symbolab.com is great for math equations and teaches you how to solve them. You should try it, because I've tried it and now I'm addicted... SO TRY IT PLEASE.
6 Atoms of carbon, 12 atoms of hydrogen, and 6 atoms of oxygen.
What’s the empirical formula of this? I also need an explanation
Answer:
CH2O
Explanation:
look at the picture
Which best describes xylem and
phloem?
A. flowering parts of a plant
B. makes energy for the plant
C. transportation tubes in a vascular plant
D. vascular tubes found only in a plant's stem
Answer:
C
Explanation:
they are used to transport minerals like salt and water into and away from a plant
Number of carbon atom in 1 mol of carbon dioxide, CO2
Answer:
Carbon dioxide, CO2, is a chemical compound composed of two oxygen atoms and one carbon atom.
Explanation:
Pls help me with this hw will be thankful!!!
Answer:
Your missing the entire Transitional Metal group as well as all the Lanthanides and Actinides.
Explanation:
The groups are:
Alkali metals.
Alkaline earth metals.
Transitional metals.
Crystallogens.
Pnictogens.
Chalcogens.
Halogens.
Noble gases.
Is Aluminium a compound, element or mixture
aluminum is a chemical element.
What does ethanol come from and why is it renewable.
Answer:
Ethanol is made from biomass
Ethanol is a renewable biofuel because it is made from biomass. Ethanol is a clear, colorless alcohol made from a variety of biomass materials called feedstocks (the raw materials used to make a product)
Answer Ethanol is a clear, colorless alcohol made from a variety of biomass materials called feedstocks (the raw materials used to make a product).
It is a renewable resource because it is made of biomass.
Explanation:
Air Mass Interactions Quick Check
Question
Use the table to answer the question.
Day Observations
1 sunny and warm
2 cloudy and rainy
3 drop in temperature
4 clear skies and cold temperatures
A student tracks the daily weather. The student’s observations are logged in the table. Which factor in the atmosphere best explains the student’s observations?
(1 point)
A warm air mass replaced a cold air mass.
A warm air mass replaced a cold air mass.
A cold front moved into the area.
A cold front moved into the area.
High levels of moisture are contained within an air mass.
High levels of moisture are contained within an air mass.
A warm front moved into the area.
A warm front moved into the area.
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The true factor in the atmosphere which perfectly explains the student’s observations is: High levels of moisture are contained within an air mass. This goes to say clearly that a very high humidity concentration in the air mass account for the best factor in the atmosphere in the student's observations
Air massAn air mass is a huge body of air in the lower atmosphere that has similar temperature, humidity, and air pressure at given height
Air mass interactionWhen two different air masses come into contact together, they don't mix. Rather, they push against each other along a line called a front. When a warm air mass meets a cold air mass, the warm air rises since it is lighter. At high altitude it cools, and the water vapor it contains condenses.
HumidityHumidity is the amount of water vapor in the air. Ofcourse, if there is a lot of water vapor in the air, the humidity will be high as well.
Learn more about air mass interaction:
https://brainly.com/question/3654676
Answer:
1. A 2.B
Explanation:
air mass and warmer will replace colder
sorry if this is not enough answers or answers dont match ur quick check
according to theory, which term best describes the universe before the big bang?
Answer:
A cloud of gas and dust
Explanation:
Put dissimilar, an interstellar cloud is a denser-than-average region of the interstellar medium. Interstellar cloud is a universal call given to a gathering of gas, plasma, and dust in our and other galaxies.
what is the law that ensures that chemical reactions are balanced?
The law of conservation of mass maintains that in all chemical reactions mass is conserved, this ensures that chemical reactions are balanced.
What is the law of conservation of mass?It is a principle of chemistry that states that the quantities of the masses involved in a given reaction must be constant, that is, the quantity of reactants consumed is equal to the quantity of products formed.
Characteristics of the law of conservation of mass:The chemical composition of a substance remains constant.In a chemical reaction certain coefficients are used to balance the equation and this will allow the number of atoms to be equal on both sides.Therefore, we can conclude that the law of conservation of mass is the one that holds that, within a closed system, the amount of matter before and after a transformation is always the same.
Learn more about the law of conservation of mass here: https://brainly.com/question/20081187
Sr 32.8 g, Si 5.2 g and O 11.9 g empirical formula number 11
[tex]\boxed{\begin{array}{c|c|c|c|c}\boxed{\sf Element}&\boxed{\sf Mass\:in\: compound}&\boxed{\sf No\:of\:moles}&\boxed{\sf Ratio}&\boxed{\sf Simplified\:ratio}\\ \sf Sr &\sf 32.8g &\sf \dfrac{32.8}{87}=0.37&\sf \dfrac{0.37}{0.18}=2.05&\sf 2 \\ \sf Si &\sf 5.2g &\sf \dfrac{5.2}{28}=0.18 &\sf \dfrac{0.18}{0.18}=1&\sf 1\\ \sf O&\sf 11.9g &\sf \dfrac{11.9}{16}=0.74&\sf\dfrac{0.74}{0.18}=4.1 &\sf 4\end{array}}[/tex]
Empirical formula:-
[tex]\\ \sf\longmapsto SiSr_2O_4[/tex]
David’s mom wants to calculate how much it will cost to drive from Los Angeles, CA, to San Francisco, CA. Gas costs $4. 00 a gallon, and the gas mileage of their car is 38 miles/gallon. What additional information does David’s mom need to do this calculation? the size of the gas tank the distance between the two cities the number of times that the gas tank will be filled along the way the speed limit on the highway between the two towns.
The additional information required to calculate the cost of the drive has been distance between the two cities. Thus, option B is correct.
The distance traveled by the object set the cost per unit has been given by the product of the distance and the cost.
Detail required for calculation costThe given question has known cost of the fuel per gallon.
The mileage of the car has been known.
The distance traveled by the car has not been known. Thus, to calculate the cost of the drive, the distance between the two points has to be known. Thus, option B is correct.
Learn more about distance traveled, here:
https://brainly.com/question/1214027
