A meteorologist wants to create a visual aid different gases in earths atmosphere which type of chart or graph would best convey the data

Answer:

[tex]\boxed{\text{163.3 L}}[/tex]

Explanation:

The pressure is constant, so, to calculate the volume, we can use Charles' Law:

\dfrac{V_{1}}{T_{1}} = \dfrac{V_{2}}{T_{2}}

Data:

V₁ = ?;            T₁ =    450 K

V₂ = 103.4 L; T₂ = 284.9 K

Calculation:

[tex]\dfrac{ V_{1}}{450} = \dfrac{ 103.4}{284.9}\\\\{ V_{1}} = 450 \times \dfrac{103.4}{284.9}\\\\ = \textbf{163.3 L}\\\text{The original volume of the helium was $\boxed{\textbf{163.3 L}}$}[/tex]

The original volume of the gas is 186.94 Liters

Further Explanation;

That is;[tex]V\alpha T[/tex]

[tex]P=kT[/tex],  where k is a constant

At different temperatures and pressure then;

[tex]\frac{V_{1} }{T_{1} } =\frac{V_{2} }{T_{2} }[/tex]

In the Question;

We are given

[tex]V_{1} = ?\\T_{1} = 450\\V_{2} = 103.4 l\\T_{2} =248.9K[/tex]

Therefore;

[tex]V_{1} =\frac{V_{2} T_{1} }{T_{2} }[/tex]

[tex]V_{1} =\frac{(103.4 L)(450 K)}{(248.9K)}[/tex]

[tex]V_{1} = 186.94Liters[/tex]

That is;

[tex]P\alpha \frac{1}{V}[/tex]

[tex]P\alpha \frac{k}{V}[/tex], where k is a constant

[tex]\frac{P_{1}V_{1} }{T_{1} } = \frac{P_{2}V_{2} }{T_{2} }[/tex]

Keywords: Combined gas laws, Boyle's law and Charles's law

Level: High school

Subject: Chemistry

Topic: Gas laws

Sub-topic: Charles's law

The graph shows that pressure and volume have an inverse nonlinear relationship.

So, option D is correct one

The ideal gas equation is written as,

[tex]PV = nRT[/tex]

At constant temperature T and the number of moles of gas n, Pressure P is inversely proportional to the volume V.

P ∝ 1/V

Hence, graph should be inverse nonlinear and such type of graph is called rectangular hyberbola.

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Answer:

a

Explanation:

The chemical reaction has been the formation of product with the reaction of reactants. The chemical reaction has been differentiated as synthesis, decomposition, replacement reaction.

The following reaction has been classified as:

The reaction has been following the synthesis of the product with a mixture of reactants. Thus, it has been given as the synthesis reaction.

There has been replacement of Ca by Ag in calcium chloride and replacement of Ag by Ca in silver nitrate. There has been two replacement. Thus, the reaction has been a double replacement reaction.

The reaction has replacement of Cu by Zn in copper sulfate. It has been a single replacement, thus the reaction has been a single replacement reaction.

There has breakdown of the compound for the formation of product. Thus, the reaction has been a decomposition reaction.

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Answer:

synthesis and combustion

double replacement

single replacement

decomposition only

Explanation:

in that order, i got it correct

Answer:

Explanation:

You don't normally do this, but you might start by balancing the complex ion which is NO3^-

There are 2 of these on the right side of the arrow so make two on the left.

CaO + 2HNO3 arrow Ca(NO3)2 + H2O

That looks balanced. Let's check it out.

Species             Ca             H              NO3            O

Left                     1                2               2                 1     on the CaO

Right                   1                2               2                 1    on the H2O

Answer:

CaO + 2HNO3 ——-> Ca(NO3)2 +H2O

Explanation:

Answer:

[tex]\boxed{\text{Pressure and volume}}[/tex]

Explanation:

The measure of R is always the same, but the numbers may differ depending on the units you use.

For example, in SI units, R = 8.314 Pa·m³K⁻¹mol

If your measurement uses different units, you must either convert your units to SI or use a value of R consistent with your units.

If you use bars and litres,                       R = 0.083 14   bar·L·K⁻¹mol⁻¹.

If you use kilopascals and litres,            R = 8.314        kPa·L·K⁻¹mol

If you use atmospheres and litres,        R = 0.082 06 L·atm·K⁻¹mol⁻¹.

If you use Torr and cubic centimetres, R = 62 368     Torr·cm³ K⁻¹mol⁻¹.

The only units that don't change are "K⁻¹mol⁻¹".

[tex]\text{The quantities that affect the value of R are }\boxed{\textbf{pressure and volume}}[/tex]

Answer:

Two or more compounds are called structural isomers if they possess the same molecular formula but different structural formulas.  

Explanation:

Two compounds are considered structural isomers if their molecular formulas are the same while they differ in their structural formulas.

For example, the molecular formula [tex]\mathrm{C_4H_{10}}[/tex] represents both butane and methylpropane. However, the two compounds differ in their structural formula. (See the structural formulas in the diagram attached.)

Due to the difference in the structures of structural isomers, there's a good chance that they will show different chemical and physical properties. For example, the melting point of butane is higher than that of methylpropane. The straight-chain shape of butane allows its molecules to be stacked close to each other. That allows for greater intermolecular forces and, therefore, a higher melting point.

Since fire was discovered have people studied chemistry

Chemistry is a science that is dedicated to the study of the following topics:

It is one of the oldest sciences in the world because it is considered that it began with the first individuals who manipulated and discovered fire.

Over time it has evolved and many scientists have found different important knowledge such as the states of matter, the chemical elements of the earth, radioactivity, chemical reactions between elements and other knowledge.

According to the above, the correct answer is C. because it mentions the event considered as the beginning of the study of chemistry.

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Answer:

since was fire was discovered

Explanation:

Answer:

D. The coefficients tell the ratio of moles of reactants used in the reaction

Explanation:

The molar ratio is central to all stoichiometric calculations.

To get the mass of Compound B that reacts with compound A, you must

You must get over the "mole hill."

Answer:

Explanation:

The heat energy required to heat a substance may be calculated from the formula:

Where:

Then, substitute the numbers in the formula to get:

Answer:

0.39L

Explanation:

Given parameters:

Initial volume of gas V₁ = 2.6L

Initial pressure on gas P₁ = 1.6atm

Final volume of gas V₂ = ?

Final pressure on gas P₂ = 10.6atm

Solution

Applying Boyle's law which states that "the volume of a fixed mass of a gas varies inversely as the pressure changes if the temperature is constant".

Mathematically;

                      P₁V₁ = P₂V₂

                      V₂ = [tex]\frac{P_{1}V_{1} }{P_{2} }[/tex]

                      V₂ =  [tex]\frac{1.6 x 2.6 }{10.6 }[/tex] = 0.39L

Answer:

1, 3, 2

Explanation:

N2 + H2 → NH3

I usually find that the best way to systematically balance an equation by inspection is to start with the most complicated-looking formula and then balance atoms in the order:

(a) The most complicated formula is NH3.

(b) Balance N.

We have 1 H in NH3, but 2 N on the left. We need 2 N on the right. Put a 1 in front of N2 and a 2 in front of NH3.

1N2 + H2 → 2NH3

(c) Balance H.

We have fixed 6 H on the right, so we need 6 H on the left. Put a 3 in front of H2.

1N2 + 3H2 → 2NH3

The equation is now balanced, and the coefficients are 1, 3, 2.

Answer:

0.114 moles

Explanation:

Calculate available moles of Fe:

0.171 mol Fe₂O₃ × (2 mol Fe / mol Fe₂O₃) = 0.342 mol Fe

Now calculate moles of Fe₃O₄ needed:

0.342 mol Fe × (1 mol Fe₃O₄ / 3 mol Fe) = 0.114 mol Fe₃O₄

Answer:

Explanation:

1) Balanced chemical equation:

2) Mole ratios:

3) Proportion:

4) Solve for x:

Answer: 20 moles of O₂ are consumed when 20 moles pf SO₂ are produced.

Answer:

Explanation:

25

Answer:

3Ag⁺ + 3NO₃⁻ + 3Na⁺ + PO₄³⁻ → Ag₃PO₄(s) + 3Na⁺ + 3NO₃⁻

Explanation:

An ionic equation is a chemical equation where the electrolytes in aqueous solution are expressed as dissociated ions.

For the reaction:

3AgNO₃(aq) + Na₃PO₄(aq) → Ag₃PO₄(s) + 3 NaNO₃(aq)

AgNO₃(aq), Na₃PO₄(aq) and NaNO₃(aq) are dissociated in water thus:

AgNO₃(aq) → Ag⁺ + NO₃⁻

Na₃PO₄(aq) → 3Na⁺ + PO₄³⁻

NaNO₃(aq) → Na⁺ + NO₃⁻

The ionic equation is:

3Ag⁺ + 3NO₃⁻ + 3Na⁺ + PO₄³⁻ → Ag₃PO₄(s) + 3Na⁺ + 3NO₃⁻

I hope it helps!

Answer:

its write for the first person who did it

Explanation:

Answer:

Reaction 1: 3700

Reaction 2: 3200

pt 2

Reaction 1: 0.00823

Reaction 2: 0.00397

pt 3

reaction 1: -450

reaction2: -81

Explanation:

Answer: fruit salad

Explanation: it consists of different types of materials.

Among the following options, heterogeneous mixture is a fruit salad. The correct answer is D.

A heterogeneous mixture is a type of mixture in which the components are not uniformly distributed and can be visibly distinguished. In other words, the different substances or phases that make up the mixture are not evenly mixed at a microscopic level.

In a fruit salad, different fruits are mixed together, and their distinct components can be observed separately. The different fruits retain their individual characteristics and do not dissolve or blend completely with each other.

On the other hand, options A, B, and C are examples of homogeneous mixtures. In a homogeneous mixture, the composition is the same throughout the mixture, and there are no visible boundaries or phases.

Therefore, the correct choice for a heterogeneous mixture is option D) A fruit salad.

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Answer:

The molar mass of potassium oxide, aka K20 would be option C. 94.0g

Explanation:

The molar mass of potassium oxide (K₂O) is 94.20 g/mol, matching option C (94.0 g).

To find the molar mass of potassium oxide (K₂O), we need to sum the molar masses of the constituent elements.

Therefore, the molar mass of potassium oxide (K₂O) is 94.20 g/mol, which is closest to option C (94.0 g).

Answer: a

Explanation:

scientific notation is about how many places passed the decimial place you are moving. therefor in order to get  1,550,000,000 you would move the decimial from 1.55 over nine times to the right

Answer: a.1.55x 109

Explanation:

In the study of Physics and Mathematics, sometimes we see very large or very small numbers. In both cases, the number of digits to write is very large. There is a simple and practical way of writing such numbers without having to write many zeros, this method is known as scientific notation. In the case we use a power of 10:

1,550,000,000 = 1.55x109

Answer:

Earth has tremendous diversity of its ecosystems. Different regions are referred to as climate biomes to understand patterns of weather, biology, and natural events.

Explanation:

The greatest difference between tropical and polar climates is the difference in temperature. Tropical climates are located near the Equator and receive more sun year-round than anywhere else on Earth, while polar climates are the farthest from the Equator and receive the least sunlight and heat of any part of the globe. This makes the winters of polar climates fierce and the summers short, while practically every day in a tropical climate is hot. While both climates might bring to mind precipitation (such as rain in the tropics and snow at the poles), both can also be quite dry. Antarctica is considered the largest desert in the world, since almost no snow falls toward the center of the continent. Tropical deserts, such as the Namib of Africa, are extremely hot and dry, making it difficult for any life to survive.

Answer: In the polar climate zone, it is very cold and dry, receiving less precipitation every year. The tropical climate zone has very warm and hot temperatures all year round, receiving much rain.

Explanation: I read the lesson and it makes sense