Core Ideas of Chemistry

An ion with a positive charge is a/an 

• anion

• cation

How many elements are in C₆H₁₂O₆?

• 1

• 2

• 3

• 4

Tags

NGSS.MS-PS1-1

Which of the following is a compound?

• Co

• O₂

• C

• CO₂

Tags

NGSS.MS-PS1-1

A molecule is made up of

• one or more mixtures.

• one or more compounds.

• one or more atoms.

• one or more solutions.

Tags

NGSS.MS-PS1-1

Which scientific law states that an atom cannot be created or destroyed:

• Law of Conservation of Matter

• Law of Gravity

• Law of Conservation of Mass

• Law of Motion

Tags

NGSS.MS-PS1-5

What reaction has the following general formula:

AB --> A + B

• Combination

• Decomposition

• Single Replacement

• Double Replacement

• Combustion

What reaction has the following general formula:

A + B --> AB

• Combination

• Decomposition

• Single Replacement

• Double Replacement

• Combustion

This chemical reaction produced....

• a precipitate

• a gas

• light

• flames and heat

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

A reaction that breaks down a larger molecule into smaller molecules.

• corrosion

• combustion

• decomposition

• neutralisation

Which of the following metals reacts with water?

• Magnesium

• Iron

• Silver

• potassium