Chemical Reactions

A chemical reaction or process that absorbs heat from the surroundings and become cooler overall

• Endothermic

• Exothermic

A chemical reaction or process that releases heat.

• Endothermic

• Exothermic

When a new substance forms as a result of a chemical reaction, what type of change has occurred?

• Chemical Change

• Physical Change

Which is NOT an indication of a chemical change?

• Temperature Change

• Shape Change

• Formation of a precipitate

• Production of light

What is the left part of a chemical equation called?

2H_{2 +} O₂ --> 2H₂O

• Reactants

• Yields

• Products

• Chemical Equation

Tags

NGSS.MS-PS1-5

What is the right part of a chemical equation called...

2H_{2 +} O₂ --> 2H₂O

• Reactants

• Yields

• Products

• Chemical Equation

Which statement is not a description of a chemical reaction?

• A solid is dropped into a beaker of liquid and a gas is released.

• A solid is dropped into a beaker of liquid and an explosion occurs.

• Two liquids are mixed in a beaker and a solid forms at the bottom of the beaker.

• A liquid is heated in the sun and half of it evaporates.

Which of the options below is NOT a chemical change

• Cooking

• Digestion

• Phase Change

• Rusting

During a chemical reaction, atoms can

• be destroyed to form a new substance

• be created to form a new substance

• be rearranged to form a new substance

Tags

NGSS.MS-PS1-5

Burning paper is an example of a

• boiling point

• chemical reaction

• extended structure

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5