CHEMISTRY HIGH SCHOOL

**98 POINTS** Given 1.00 gram of (NH4)2 CO3, how many grams of this sample would be due to hydrogen?

Answers

Answer 1
Answer:

OP already did it - CONGRATS!!

here are the steps 2 get the same ans:

(NH4)2 CO3 has 2x N, 8x H, 1x C and 3x O per molecule

so its molecular mass = 2x14 + 8x1 + 1x12 + 3x16

=28+8+12+48

=96g

of that 96g, 8x1=8g is due to Hydrogen

so by ratio n proportion, 1.00g will have 1x8/96 = 1/12g = 0.083g of H

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Hydrogen, when combined with oxygen in a chemical reaction, forms water. This is an example of which type of chemical reaction? I think its single displacement but I am not sure.

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it's synthesis. hope this helps you out.

the answer is it's synthesis

Given the reaction at 101.3 kPa and 298 K: hydrogen gas + iodine gas -> hydrogen iodide gas This reaction is classified as

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Answer:

Endothermic, because heat is absorbed.

Explanation:
This is classified as a "Formation Reaction"

Homogeneous mixture definition

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It is a mixture that is uniform in both composition and properties.

Answer:

It is a mixture that is uniform in both composition and properties.

Explanation:

Explain what an air mass is?

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Answer:

A body of air with horizontally uniform temperature, humidity, and pressure.

Explanation:

hope this helped :)

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yedsdfsdfdsfsdfsd f sdf ssdf sdfsdf sd fsdf sd

Explanation:

Formula equation is more informative than a word equation why​

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Answer:

yes

Explanation:

this is because the formula equation shows the details on how they solved the equation

Which statement correctly describes diamond and graphite, which are different forms of solid carbon?(1) They differ in their molecular structure, only.
(2) They differ in their properties, only.
(3) They differ in their molecular structure and properties.
(4) They do not differ in their molecular structure or properties.

Answers

Answer: Option (3) is the correct answer.

Explanation:

When an element exists in two or more different physical forms then they are known as allotropes.

For example, diamond and graphite are both allotropes of carbon.

In graphite, carbon atoms are joined together in sheets of six sided lattice. Whereas in diamond, carbon atoms are joined together in four cornered lattice.

Therefore, as these allotropes are made up of same element so they have similar chemical properties but different physical properties like melting point, boiling point etc.

Also, both of them have different molecular structure.

Thus, we can conclude that the statement the differ in their molecular structure and properties correctly describes diamond and graphite.
They differ in their molecular structures and properties.
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