Biology, First Semester Exam Review

These are the substances that are changed during a chemical reaction.

• reactants
• products

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

These are the substances made by a chemical reaction

• reactants
• products

Tags

NGSS.HS-PS1-6

When H+ reacts with OH-, it forms what? 

• acid
• water
• base
• carbon dioxide

Tags

NGSS.HS-PS1-2

Inside of the nucleus, you will find which particles?

• electrons and protons
• neutrons and electrons
• protons and neutrons
• electrons only

Substances that have a pH less than 7 are considered:

• acidic
• basic
• neutral

Substances that have a pH more than 7 are considered:

• acidic
• basic
• neutral

Substances that have a pH of 7 are considered:

• acidic
• basic
• neutral

______ occurs when reactants and products are made at the same rate.

• Activation energy
• Equilibrium 
• Exothermic Energy
• Endothermic Energy

Tags

NGSS.HS-PS1-6

This is a chemical reaction that absorbs more energy than it releases

• exothermic reaction
• endothermic reaction
• activation energy
• bond energy

Tags

NGSS.HS-PS1-4

This is a chemical reaction that releases more energy than it absorbs

• exothermic reaction
• endothermic reaction
• activation energy
• bond energy

Tags

NGSS.HS-PS1-4