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Lelechka [254]
3 years ago
9

1.A ____ is like a recipe for a chemical substance. (valence, formula, subscript, coefficient)

Chemistry
2 answers:
Darya [45]3 years ago
8 0

Answer:

1. A substance 2. Valence

Explanation:

Llana [10]3 years ago
7 0

Answer:1.A ____ is like a recipe for a chemical substance. (valence, formula, subscript, coefficient)

2

The____ in a formula tells the number of atoms of each element present. (valence, formula, subscript, coefficient)

Explanation:

1.A ____ is like a recipe for a chemical substance. (valence, formula, subscript, coefficient)

2

The____ in a formula tells the number of atoms of each element present. (valence, formula, subscript, coefficient)

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When magnesium (mg) metal is placed in hydrochloric acid (hcl), it forms magnesium chloride (mgcl2) and a gas. what gas is forme
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Acetylene gas (ethyne; HC = CH) burns in an oxyacetylene torch to produce carbon dioxide and water vapor. The heat of reaction f
Yanka [14]

The mass of CO2 produced by 26g of acetylene is 88g.

Given ,

In an oxyacetylene torch, acetylene gas (ethyne; HCCH) burns to produce carbon dioxide and water vapour.

The acetylene combustion reaction is given by,

H2O + HCCH + 5/2 O=O 2CO2

Heat of reaction for acetylene combustion = 1259kj/mol

CO2 has a molecular mass of 44g/mol.

2 moles of CO2 have a molecular mass of 88g.

On combustion, 1 mole of acetylene yields 2 moles of CO2.

Thus, 26g of acetylene produces 88g of CO2 when burned.

As a result, the mass of carbon dioxide produced by 26g of acetylene is 88g.

Learn more about acetylene here :

brainly.com/question/15346128

#SPJ4

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espero que esto ayude

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