LBC Chapter 13 Vocabulary

Categorize

Options (8)

Breaking glass

ripping paper

dissolving sugar

burning paper

photosynthesis

decomposition of water to hydrogen and ozygen gas

water evaporating

digesting food

Categorize the following as physical or chemical changes:

physical change

chemical change

Dropdown

In a​

Select answer

change, the state of matter of a substance changes. The chemical formula ​

Select answer

change.

Multiple Select

What is true about formula units and molecular formulas? Select all that apply.

• a "formula unit" refers to the lowest whole number ratio of ions within a compound

• a "molecular formula" refers to the lowest whole number ratio of ions within a compound

• a "formula unit" represents the actual number of each type of atom present in a molecule of a covalent compound

• a "molecular formula" represents the actual number of each type of atom present in a molecule of a covalent compound

Multiple Choice

Which is an example of a decomposition reaction?

Multiple Choice

Which is an example of a single exchange (displacement) reaction?

Multiple Choice

Which is an example of a synthesis reaction?

Multiple Choice

Which is an example of a double exchange (displacement) reaction?

Multiple Choice

What type of reaction is shown in the image?

• decomposition

• synthesis

• single displacement

• combustion

Multiple Choice

What type of reaction is shown in the image?

• combination (or synthesis)

• combustion

• waterification

• double displacement

Multiple Choice

What type of reaction is shown in the image?

• single exchange (single displacement)

• double exchange (double displacement)

• combustion

• decomposition