You time travel 100 years into the future and learn that several new elements have been discovered, as pictured. These elements are frequently found as oxides, and need to be separated in order to extract the pure element. Before going through this effort, it is useful to know what amount of the element can be extracted. What is the mass percent composition of element T in the compound T6O5?

Answer:

.......element 3 ............

The equation that shows that the salt is acidic is;

C₅H₅NHI + [tex]H_{2} O[/tex] ----->  C₅H₅N + [tex]H_{3} O^+[/tex] + [tex]I^-[/tex]

We know that when we dissolve certain salts in water, the salts could form an acidic, basic or a neutral solution depending on the kind of interaction that the salt could have with the solvent.

Looking at the salt C₅H₅NHI, we can see that the salt can interact with water so as to form the acid that is called hydro iodic acid as shown by the equation; C₅H₅NHI + [tex]H_{2} O[/tex] ----->  C₅H₅N + [tex]H_{3} O^+[/tex] + [tex]I^-[/tex]

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Answer:

I agree, It would either me stabillity or half life.

Explanation:

Answer:

Zn^2+

Explanation:

Kinetic energy is increasing, and potential energy is decreasing statement best describes the changes in energy as she begins to descend.

A particle or an object that is in motion has a sort of energy called kinetic energy. An item gains kinetic energy when work, which involves the transfer of energy, is performed on it by generating a net force. Kinetic energy refers to the energy that a moving thing has as a result of its motion.

Motion is kinetic energy. A object's velocity increases with pace. both the kinetic energy of water flowing (hydraulic energy) and the wind (wind energy), which can be used to produce energy. (Kinetic energy) is a type of energy.

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Answer:

State : Gaseous state  Colour : Pale yellow  Odour : Irritating

Explanation:

At 25 degree celsius which is approximately known as the room temperature, Fluorine being the highest electronegative element has weak van der waal forces due to which the electrons are apart from each other. At a high enough temperature(room temp. in this case) that is higher than their boiling point, the fluorine atoms become gaseous particles. Hope you understood my explanation....Happy Learning:)

The concentration in mmol/L of the chemist's mercury(I) chloride solution. is 2.03 × 10^-8 M

We are given;

Number of moles of mercury (i) chloride as 0.000406 μmol

Volume is 200 mL

We are required to calculate the concentration of the solution.

We need to know that;

Concentration is also known as molarity is given by;

Molarity = Number of moles ÷ Volume

Number of moles = 4.06 × 10^-10 Moles

Volume = 0.02 L

Therefore;

Concentration = 4.06 × 10^-10 Moles ÷ 0.02L

                      = 2.03 × 10^-8 M

Thus, the molarity of the solution is 2.03× 10^-8 M.

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Answer:

24.984466667

Explanation:

add all mass values and divide by amount (3)

2Na(s)+Cl2(g) 2NaCl(s) is the balanced equation.

However, closer examination of this equation reveals that, despite having one sodium atom on each side of the arrow, the reactants contain two chlorine atoms whereas the products have just one. This equation is invalid for use in chemical calculations because it is unbalanced.

Once more, chemical reactions never result in the creation or destruction of atoms. A balanced chemical equation is this kind of chemical equation. A chemical equation that complies with the law of conservation of matter is said to be balanced.

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The electronic configuration of oxygen is k =2, L=6 the subshell configuration is 1s², 2s²,2p⁴. Similarly the configuration of sodium is 1s², 2s²,2p⁶,3s¹ and that for chlorine is 1s², 2s²,2p⁶,3s²,3p⁵.

The electronic configuration of an element is the distribution of electrons in different orbitals from the lowest energy level to the highest energy level.

Oxygen is 8th element thus having 8 electrons. The main shell configuration is K= 2, L= 6 and the subshell electronic configuration is 1s², 2s²,2p⁴.

Sodium is 11th element. The main shell electronic configuration is  K=2, L=8, M=1. Subshell electronic configuration is  1s², 2s²,2p⁶,3s¹ and the noble gas configuration is [Ne]3s¹. Where Ne have 10 electrons.

Chlorine is 17th element with main shell configuration K =2, L=8, M=7.Subshell configuration 1s², 2s²,2p⁶,3s²,3p⁵ and noble gas configuration is [Ne] 3s² 3p⁵.

Nitrogen is 7th element with K= 2, L=5 and subshells, 1s², 2s²,2p³.

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Having disposal sites where people can safely dispose of medications, household cleaners and waste instead of pouring them down their sink drains impacts the environment by reducing water pollution.

What is water pollution?

Pouring chemicals down the drain poses the most immediate risk of water pollution. Chemicals are harmful for consumption by all living things when they are dumped down the drain because of the effects they have on our rivers, lakes, streams, and other water supplies.

In regions where contamination is happening, human health might suffer, which can cause serious health problems. Animals and plants that are given contaminated water get sick and die, which has an impact on agriculture as well.

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In a case whereby A bath bomb is a solid sphere made of a weak base and a weak acid and you add it to a bathtub, it mixes with the water to create a soapy solution. If you want it to completely and quickly dissolve a large bath bomb, then  C. Increase the water temperature, which increases the solubility of the bath bomb - dissolving it more quickly.

Solubility can be described as the maximum amount of a substance  which candissolve when subjected to given amount of solvent at a specified temperature.

It should be noted that the Solubility i serves as the characteristic property  that can be associated to a specific solute–solvent combination and there is a differing solubilities, hence from the case aboive when the tempertaure is been increased , this will  increases the solubility of the bath bomb .

Therefore, option C is correct.

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The two isotopes' relative abundances are: 121 antimony = 57.2% and

123 antimony = 42.8%.

The average mass of all antimony isotopes is 121.76 amu.

Taking into account your data,

(the sum of both abundances is 100%), and

120.904x+122.904y=121.76

Now, some high school algebra will assist us in understanding the solution.

= 120.904x+12.2904x=121.76x=0.572, and thus

x+ y= 1

∴y≈ 0.42

Results show that 121 Sb has a relative abundance of about 57.2% and 123 Sb has a relative abundance of about 42.8% when these decimals are converted into percentages.

There are 2 naturally occurring isotopes of antimony. Antimony-121 has a mass of 120.904 amu, and antimony-123 has a mass of 122.904 amu.

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The volume that was started with if the temperature of 126 K in a container with a pressure of 31 atm is 3.47L.

The volume of a gas can be calculated using the combined gas law equation as follows:

P₁V₁/T₁ = P₂V₂/T₂

Where;

According to this question, an unknown volume of gas held at a temperature of 126K in a container with a pressure of 31 atm.

If by increasing the temperature to 209 K and decreasing the pressure to 19 atm causes the volume of the gas to be 9.4 liters, the initial volume is calculated as follows:

31 × V₁/126 = 19 × 9.4/209

0.246V = 178.6/209

0.246V = 0.854

V = 3.47L

Therefore, 3.47L is the volume of the gas that started.

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The mass of 45.0 L of Cl₂ at 87.0° C and 950 mm Hg is 134.7214 g.

Volume = 45.0 L

Temperature =  = (87.0 + 273) K = 360 K

Pressure = 950 mm Hg (1 mm Hg = 0.00131579 atm) = 1.25 atm

The formula used to calculate moles is as follows.

∴PV = nRT

where,

P = pressure

V = volume

n = no. of moles

R = gas constant = 0.0821 L atm/mol K

T = temperature

Substitute the values into the above formula as follows:

 ∴ PV = nRT

=> 1.25 atm × 45.0 L = n × 0.0821 L atm/mol K × 360K

=> n = 1.25 atm × 45.0 L / n × 0.0821 L atm/mol K × 360K

=> n = 56.25 / 29.556 mol

=> n = 1.90 mol

Moles is the mass of a substance divided by its molar mass. So, the mass of Cl₂ (molar mass = 70.906 g/mol) is calculated as follows:

∴  Moles = mass / molar mass

=> 1.90 mol = mass /  70.906 g/mol

=> mass = 134.7214 g

Thus, we can conclude that the mass of 45.0 L of Cl₂ at 87.0° C and 950 mm Hg is 134.7214 g.

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Answer:

Don't follow this!

Explanation:

Your chemistry teacher knows that you are cheating and using this as your own work.

-From said teacher!

o.703..litter

Explanation:

M=n/v(l)solution

so v=n/M..... =8.48/12.05=0.703...

According to the given statement 0.49 M  is the molarity of the diluted solution.

Molarity (M), which is calculated by dividing the solute's weight in moles by the the solution's volume in liters, is the most widely used unit to express solution concentration: litres of solution/moles of solute equals M.

Utilizing the dilution law equation

M₁V₁ = M₂V₂

Where

M₁ is the initial molarity

V₁ is the initial volume

M₂ is the final molarity

and V₂ is the final volum

From the given information,

M₁ = 1.3 M

V₁ = 191 mL

V₂ = 500.0 mL

The result of entering the parameters into the formula is

1.3  * 191 = M[tex]_2[/tex] * 500

M[tex]_2[/tex]  = 1.3 * 191 / 500

M[tex]_2[/tex] = 248.3/500

M[tex]_2[/tex] = 0.4966 M

M[tex]_2[/tex] ≅ 0.49 M

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Answer:

deforestation

Explanation:

deforestation is clearing Earth's forests on a massive scale, often resulting in damage to the quality of the land. Forests still cover about 30 percent of the world's land area, but swaths the size of Panama are lost each and every year.

Solid potassium (K) conducts an electric current, whereas solid potassium iodide (KI) does not because solid potassium has a delocalized sea of electrons and KI has its cations and anions.

Positively charged potassium and negatively charged iodine combine to form the straightforward inorganic ionic chemical potassium iodide. It is solid at room temperature and resembles sodium chloride or table salt in terms of crystalline structure.

The major uses of potassium iodide are to treat hyperthyroidism and as a dietary supplement for those who are iodine deficient. Additionally, it is utilized as an expectorant to treat asthma and other long-term respiratory disorders, as well as to shield the thyroid gland from radiation.

When potassium iodide is dissolved in water, it splits into cations and anions, enabling free electron movement across the solution. It does not conduct electricity when it is in a dry crystal state, though, like other ionic compounds.

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From the general gas equation, the volume of the same sample of gas at STP will be closest to the volume at 350 K and 1 atm multiplied by 273/350; option D.

The relationship between the volume, temperature, and pressure of a gas is given by the general gas equation below:

P₁V₁ / T₁ = P₂V₂ / T₂

Where;

P₁ = initial pressure

V₁ = initial volume

T₁ = initial temperature

P₂ = final pressure

V₂ = final volume

T₂ = final temperature

Solving for V₂;

V₂ = P₁V₁T₂ / P₂T₁

V₂ = 350 * 1 * 273/350

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To calculate the atoms of an element in a given molecule, we need to multiply stoichiometry by the number that is written on the foot of that element. Therefore, the balanced equation is

CH[tex]_4[/tex]+4S[tex]\rightarrow[/tex]CS[tex]_2[/tex]+2H[tex]_2[/tex]S

Balanced equation is the one in which the total number of atoms of a species on reactant side is equal to the total number of atoms on product side. The mass of the overall reaction should be conserved. There are so many types of chemical reaction reaction like combination reaction, displacement reaction.

The skeletal equation is

CH[tex]_4[/tex]+S[tex]\rightarrow[/tex]CS[tex]_2[/tex]+H[tex]_2[/tex]S

The number of carbon atoms on reactant and product side is 1, so C is balanced.

The number of hydrogen atoms on reactant side is 4 while on product side it is 2, so to balance we need to multiply H[tex]_2[/tex]S by 2.

CH[tex]_4[/tex]+S[tex]\rightarrow[/tex]CS[tex]_2[/tex]+2H[tex]_2[/tex]S

The number of sulfur atoms on reactant side is 1 while on product side it is 4, so to balance we need to multiply S by 4.

CH[tex]_4[/tex]+4S[tex]\rightarrow[/tex]CS[tex]_2[/tex]+2H[tex]_2[/tex]S

Therefore, the balanced equation is

CH[tex]_4[/tex]+4S[tex]\rightarrow[/tex]CS[tex]_2[/tex]+2H[tex]_2[/tex]S

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Triple beam balance is not used to measure the weight of water because it is used to  measure mass.

The triple beam balance is an instrument used to measure mass very precisely. Such devices typically have a reading error of ±0.05 grams. Its name refers to its three beams, where the middle beam is the largest, the far beam of medium size, and the front beam the smallest.

Spring balance is used to measure the weight of the body whereas beam balance is used to measure the mass of the body. Since the mass of the body remains the same on earth as well as on moon but the acceleration due to gravity differs.

Therefore Triple beam balance is not used to measure the weight of the water.

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In the Lac operon, multiple proteins form from the same mRNA due to RNA splicing.

An operon is a cluster of genes that are transcribed from the same promoter to give a  single messenger RNA (mRNA) molecule that contains multiple coding sequences that are used to make multiple proteins.

Such an mRNA molecule is called a polycistronic mRNA.

An example of an operon is the Lac operon which encodes the genes used to produce the various enzymes required for the metabolism of lactose.

Three of the enzymes in the lac operon are grouped together and are known as lacZ, lacY, and lacA.

Alternative splicing of the mRNA produces the different proteins in operons.

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Answer:

the protons go in the direction of C, the electrons go in the direction of A and neutrons go the direction of B.

Explanation:

this is because electrons get attracted to positively charged objects and protons get attracted to negatively charged objects and neutrons have no attraction towards any charge.

The molecules in which the central atom has an expanded octet is BrF₃ ans SF₆.

Hypervalent compound is the compound in which central atom contains more than 8 electrons or expanded octet.  Hypovalent is the compound in which atom posses less than eighth electron in the valence shell. in  In  BrF₃ , Bromine has 7 valence electron and fluorine seven electrons . the three F atom complete their octet after the bonding with Br but In Br there are 10 electrons in valence shell . so,  BrF₃ has expanded octet. SF₆, the sulfur , sulfur has 6 valence electron and Fluorine has 7 valence electron F atom complete there octet with sulphur but S atom has 12 valence electrons that is expanded octet.

Thus, The molecules in which the central atom has an expanded octet is BrF₃ ans SF₆.

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Forest is a habitat for many plants and animals because it provides a suitable environment for them.

Forest is a habitat for many plant life and animals as it offers a appropriate environment for them. As an instance, neem, Sheesham, Palash, tiger, porcupine, elephants, jackal and so forth. The ground beneath the tree of the forest is the forest floor.

It causes habitat destruction, accelerated chance of predation, reduced food availability, and lots greater. As a result, some animals lose their homes, others lose meals assets – and ultimately, many lose their lives. In reality, deforestation is one of the essential causes of extinction.

Weather trade also alters the life cycles of flora and animals. as an instance, as temperatures get warmer, many plant life are starting to develop and bloom earlier inside the spring and live to tell the tale longer into the fall. A few animals are waking from hibernation sooner or migrating at different instances, too.

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Al₂(CO3)3 has the highest melting point. Aluminum carbonate has melting point of 58 degree Celsius.

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Different types of matter have different requirements because the pressure and temperature of a substance's environment dictate its phase.

Matter is anything that occupies space and has mass. The states or phases of matter include solids, liquids, gases, and plasma. Any material in a form that has a distinct shape and volume is referred to as a solid. Phase change refers to a shift in the condition of matter. Phase shifts can be carried out by people and occur frequently in nature.

A set of molecules will experience various movements, such as vibrations, rotations, and translations, depending on the average temperature in their vicinity.

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When heat is added to the water molecules there is an increase in temperature causing the water molecules to gain kinetic energy and move more rapidly. The water molecules will then move further apart resulting in an increase in the water volume.

The water molecule is said to be composed of two hydrogen atoms, each linked by a single chemical bond to an oxygen atom.

When heat is added to water molecules, it can result in;

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The chemical substances that are made up of two or more elements are known as compounds.

Compounds are the chemical substances that are made up of two or more elements which bonded to each other with fixed ratio. When elements combine with each other some of there individual properties are lost and some new properties are observed in the newly formed compounds.

Compounds can be differentiated into two types:

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