2023-24 Physical Science Chapter 7B Chemical Reactions

What kind of reaction occurs when water breaks up into hydrogen and oxygen gas?

• decomposition

• double replacement

• single replacement

• synthesis

• decomposition

• double replacement

• single replacement

• synthesis

The term "oxidation" is used today to refer to

• any reaction that burns

• any reaction where electrons are lost

• fuel reacting with oxygen

• reactions between metals and oxygen

Oxygen must be present for a combustion reaction to occur

• True

• False

Oxygen must be present for an oxidation reaction to occur

• True

• False

To produce Iron sulfide, which element goes through oxidation?

• Iron

• Sulfur

• Neither Iron nor Sulfur. This is not an oxidation/reduction reaction.

To produce Iron sulfide, which element goes through reduction?

• Iron

• Sulfur

• Neither Iron nor Sulfur. This is not an oxidation/reduction reaction.

Tags

NGSS.HS-PS1-7

Synthesis (combination) reactions produce multiple products

• True

• False

Tags

NGSS.MS-PS1-1

Which reactions require the presence of oxygen?

• Combustion

• Oxidation

• Both Combustion and Oxidation

• Neither Combustion nor Oxidation