Chemical Reactions

A solid formed from a solution during a chemical reaction is called a

• precipitate

• reactant

• crystal

• powder

A reaction that release energy in the form of heat is

• endothermic

• synthesis

• exothermic

• decomposition

Tags

NGSS.MS-PS1-4

The reaction: Na + Cl --> NaCl is an example of

• decomposition

• replacement

• combustion

• synthesis

The reaction: H₂O --> H₂ + O₂ is an example of

• replacement

• decomposition

• synthesis

• combustion

The reaction Mg + 2 HCl --> MgCl₂ + H₂ is an example of

• synthesis

• decomposition

• replacement

• combustion

The reaction CH₄ + 2 O₂ --> CO₂ + 2 H₂O is an example of

• synthesis

• decomposition

• replacement

• combustion

During photosynthesis, energy from the sun is used to make food for the plant. This process is

• endothermic

• exothermic

Tags

NGSS.MS-LS1-6

NGSS.MS-LS1-7

In the reaction, glucose + oxygen --> carbon dioxide + water and energy, glucose and oxygen are the

• products

• reactants

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

A chemical reaction that breaks down one complex substance into 2 or more simpler substances is

• synthesis

• decomposition

• replacement

• combustion

A substance that enters into a chemical reaction is called a

• product

• precipitate

• reactant

• solution

Tags

NGSS.MS-PS1-5