Chemical Reaction Quiz

In the reaction 2 H₂ + O₂ → 2 H₂O, there are __ hydrogen atoms on the reactant side.

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NGSS.MS-PS1-1

NGSS.MS-PS1-5

In the equation 2 Na + Cl₂ → 2 NaCl, the number of chlorine atoms in the reactants is ___.

In the decomposition reaction 2 H₂O → 2 H₂ + O₂, there are ___ hydrogen atoms produced.

Tags

NGSS.MS-PS1-5

For the combustion of methane, CH₄ + 2 O₂ → CO₂ + 2 H₂O, there are ___ oxygen atoms in the products.

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-5

In the single replacement reaction 2 K + 2 H₂O → 2 KOH + H₂, there are ___ hydrogen atoms produced.

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NGSS.MS-PS1-5

A chemical reaction can occur without the breaking of bonds in reactants.

• True

• False

The products of a chemical reaction always have different atoms than the reactants.

• True

• False

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Endothermic reactions release energy to the environment.

• True

• False

Tags

NGSS.MS-PS1-4

A synthesis reaction involves the combination of two or more reactants to form a single product.

• True

• False

Tags

NGSS.MS-PS1-1

The burning of wood is an example of a decomposition reaction.

• True

• False

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5