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alukav5142 [94]
2 years ago
14

What else is produced when sodium carbonate decomposes? Na2CO3 Na2O +

Chemistry
2 answers:
andriy [413]2 years ago
7 0

When a single compound breaks down into two or more compounds or elements in a chemical reaction then it is known as decomposition reaction.

The chemical symbol for sodium carbonate is Na_2CO_3.

The decomposition of sodium carbonate is:

Na_2CO_3\rightarrow Na_2O+ CO_2

The decomposition of sodium bicarbonate, Na_2CO_3 will result in the formation of sodium oxide, Na_2O and carbon dioxide, CO_2.

Hence, carbon dioxide, CO_2 will produce with sodium oxide, Na_2O on decomposition of Na_2CO_3.

White raven [17]2 years ago
4 0

Na2CO3 Na2O +CO2   CO2 is the answer

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How does a sample of hydrogen at 10 °C compare to a sample of hydrogen at 350 K?
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Answer: -

The hydrogen at 10 °C has slower-moving molecules than the sample at 350 K.

Explanation: -

Temperature of the hydrogen gas first sample = 10 °C.

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Thus we see the second sample of the hydrogen gas more temperature than the first sample.

We know from the kinetic theory of gases that

The kinetic energy of gas molecules increases with the increase in temperature of the gas. The speed of the movement of gas molecules also increase with the increase in kinetic energy.

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8 0
3 years ago
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Sergeeva-Olga [200]

Answer:

900 K

Explanation:

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\displaystyle PV = nRT

Because only pressure and temperature is changing, we can rearrange the equation as follows:
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The right-hand side stays constant. Therefore:

\displaystyle \frac{P_1}{T_1} = \frac{P_2}{T_2}

The can explodes at a pressure of 90 atm. The current temperature and pressure is 300 K and 30 atm, respectively.

Substitute and solve for <em>T</em>₂:

\displaystyle \begin{aligned} \frac{(30\text{ atm})}{(300\text{ K})} & = \frac{(90\text{ atm})}{T_2} \\ \\ T_2 & = 900\text{ K}\end{aligned}

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7 0
2 years ago
16. What is a pure substance formed when two or more different elementscombine called?A. compoundB. moleculeC. element
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<h2>Answer:</h2>

Compound. Option A is correct

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When two or more different elements combines, a compound is formed. For instance, if carbon and oxygen combines, carbondioxide is formed according to the equation;

C+O_2\rightarrow CO_2

From the reaction, carbon and oxygen are the elements while carbondioxide is the compound. Hence we can conclude that a pure substance formed when two or more different elements combine called compound.

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The density of ice is less than the density of water.

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