Mid Term Review

Front

What is a chemical reaction?

Back

A process where substances (reactants) undergo a transformation to form new substances (products), often involving changes in energy and properties.

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Front

What is a precipitate?

Back

A solid that forms and settles out of a liquid mixture during a chemical reaction.

Tags

NGSS.MS-PS1-2

Front

What are valence electrons?

Back

Electrons in the outermost shell of an atom that determine its chemical properties and reactivity.

Front

What is the periodic table?

Back

A tabular arrangement of elements organized by increasing atomic number, showing periodic trends in properties.

Front

What are divergent plate boundaries?

Back

Regions where tectonic plates move apart, leading to the formation of new crust, often associated with volcanic activity.

Tags

NGSS.MS-ESS2-3

Front

What are convergent plate boundaries?

Back

Regions where tectonic plates collide, leading to subduction or mountain formation, often associated with earthquakes.

Tags

NGSS.MS-ESS2-3

Front

What is the chemical formula for calcium hydroxide?

Back

Ca(OH)₂

Front

What is the chemical formula for sulfuric acid?

Back

H₂SO₄

Tags

NGSS.MS-PS1-1

Front

How do you calculate the mass of a reactant in a chemical reaction?

Back

By using the law of conservation of mass, which states that mass is neither created nor destroyed in a chemical reaction.

Tags

NGSS.MS-PS1-5

Front

What is the significance of group numbers in the periodic table?

Back

Group numbers indicate the number of valence electrons in the elements of that group, influencing their chemical behavior.