Chemical Equation

A chemical reaction expresses a chemical change

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True

False

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POINTS (1)

Correct Answer

Explanation

Is this a chemical reaction?

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Hydrogen reacts with oxygen to make water

Yes

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Explanation

Fill in the gaps of the chemical change statement

hydrogen + (1) → (2)

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water

oxygen

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Explanation

What do signs mean in this statement

hydrogen + oxygen → water

+ (1)
→ (2)

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two substances interact chemically

a chemical reaction takes place

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Explanation

Is this chemical equation represented properly?

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H₂ + O₂ → H₂O

Yes

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Name the parts of the chemical equation

H₂ + O₂ → H₂O

H₂(1)
O₂(2)
H₂O (3)

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products

reactants

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Explanation

In light of the law of conservation of matter, is this a complete chemical equation?

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H₂ + O₂ → H₂O

Yes

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Explanation

Can we change the subscripts in the formula for water so that it has two oxygen atoms in it in order align with the law of conservation of matter?

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H₂ + O₂ → H₂O

Yes

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Explanation

What can you do in order to accommodate for the missing atom of oxygen in water chemical equation?

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In light of the law of conservation of matter

H₂ + O₂ → H₂O

Nothing

Change subscript number

Change the number of molecules that react or are produced

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Explanation

Balance the chemical equation

Hydrogen and chlorine react to make HCl

H₂ + Cl₂ → [ ? ] HCl

Missing

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POINTS (1)

A chemical reaction expresses a chemical change

Correct Answer

Explanation

Is this a chemical reaction?

Correct Answer

Explanation

Fill in the gaps of the chemical change statement

Correct Answer

Explanation

What do signs mean in this statement

Correct Answer

Explanation

Is this chemical equation represented properly?

Correct Answer

Explanation

Name the parts of the chemical equation

Correct Answer

Explanation

In light of the law of conservation of matter, is this a complete chemical equation?

Correct Answer

Explanation

Can we change the subscripts in the formula for water so that it has two oxygen atoms in it in order align with the law of conservation of matter?

Correct Answer

Explanation

What can you do in order to accommodate for the missing atom of oxygen in water chemical equation?

Correct Answer

Explanation

Balance the chemical equation

Correct Answer

Explanation

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