Chemical Equations and Reactions

Two or more reactants combine to form one product

• Synthesis

• Single Replacement

• Double Replacement

• Combustion

A fuel is combined with oxygen to produce carbon dioxide and water

• Decomposition

• Single Replacement

• Double Replacement

• Combustion

Tags

NGSS.MS-PS1-4

NGSS.MS-PS1-5

The same number of atoms of each element must be found in both reactants and products of a chemical equation to be balanced. What does this refer to?

• The law of conservation of energy

• The law of conservation of mass

• Activation energy

• Endothermic reactions

Tags

NGSS.MS-PS1-5

What coefficient is needed to balance the following equation? 2MG + O₂ --> ___ MgO

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Tags

NGSS.MS-PS1-5

What coefficient is needed to balance the following chemical equation?

N₂ + ___ H₂ --> 2 NH₃

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Tags

NGSS.MS-PS1-5

What coefficient is needed to balance the following chemical equation? 2Al + 3CuCl₂ --> ___ AlCl₃ + 3Cu

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Tags

NGSS.MS-PS1-5

What coefficient is needed to balance the following chemical equation?

2 KClO₃ --> 2 KCl + ___ O₂

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Tags

NGSS.MS-PS1-5

This slows down a chemical reaction.

• catalyst

• inhibitor

Tags

NGSS.HS-PS1-5

A chemical reaction that absorbs energy.

• Exothermic reaction

• Endothermic reaction

Tags

NGSS.HS-PS1-4

One reactant is broken down into two or more products

• Synthesis

• Decomposition

• Single Replacement

• Double Replacement