Unit 3 Practice Changes in Matter

Front

What type of reaction occurs when ice cubes melt in a glass of soda?

Back

Endothermic reaction.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Front

What is the stability condition for atoms regarding their outer shell?

Back

Atoms are most stable when their outer shell is complete.

Tags

NGSS.HS-PS1-1

Front

What are the substances called that are listed on the right side of a chemical equation?

Back

Products.

Front

What type of bond is formed between a metal and a non-metal?

Back

Ionic bond.

Front

What happens to water vapor when it forms a liquid on the outside of a glass?

Back

The vapor loses heat when it touches the glass.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

NGSS.MS-PS3-5

Front

Define an endothermic reaction.

Back

An endothermic reaction is a process that absorbs heat from the surroundings.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Front

What is the significance of the outer shell of an atom in chemical bonding?

Back

The outer shell determines the atom's reactivity and ability to form bonds.

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Front

What is the difference between reactants and products in a chemical equation?

Back

Reactants are the starting substances, while products are the substances formed as a result of the reaction.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Front

What is the role of ionic bonds in the formation of compounds?

Back

Ionic bonds hold together ions of opposite charges, forming stable compounds.

Tags

NGSS.HS-PS1-3

Front

Explain the process of condensation in terms of heat transfer.

Back

Condensation is the process where water vapor loses heat and changes into liquid form.

Tags

NGSS.MS-PS1-4