Exothermic and endothermic reactions

Burning involves:

• physical change

• chemical change

• both

• none

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

When fuel burns ________________ are released:

• Heat

• Light

• Carbon dioxide

• All of the above

Tags

NGSS.MS-PS3-4

A chemical reaction in which energy is released is called:

• exothermic

• endothermic

• displacement

• none

Tags

NGSS.MS-PS1-6

NGSS.MS-PS3-4

When hydrogen reacts with oxygen, why it burns?

• it is inflammable

• it is non flammable

• both

• none

Tags

NGSS.MS-PS1-2

In hydrogen rocket, what is the fuel?

• oxygen

• hydrogen

• carbon

• none

Tags

NGSS.MS-PS1-1

combustion is ______________ reaction:

• fast

• slow

• oxidation

• reduction

Carbon + oxygen =

• carbon dioxide

• carbonate

• both

• none

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-2

NGSS.MS-PS1-5

CH₄ + O₂ =

• carbon dioxide

• water

• both carbon dioxide and water

• none

Tags

NGSS.MS-PS1-2

A reaction in which energy is absorbed:

• endothermic

• exothermic

• both

• none

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Oxidation means:

• addition of hydrogen

• addition of oxygen

• removal of carbon

• none