Midterm Review BORKOW (24-25)

Front

What is density?

Back

Density is the mass of a substance divided by its volume, typically expressed in g/mL or kg/m³.

Front

How do you calculate density from a mass and volume graph?

Back

Density can be calculated by finding the slope of the mass vs. volume graph, where slope = mass/volume.

Front

What is a metalloid?

Back

Metalloids are elements that have properties of both metals and nonmetals, often used in semiconductors.

Front

Which element has three valence electrons and is a metalloid?

Back

Boron (B) is a metalloid with three valence electrons.

Front

What is the atomic symbol for Calcium?

Back

The atomic symbol for Calcium is Ca.

Front

What is the definition of volume?

Back

Volume is the amount of space an object occupies, measured in cubic units.

Front

What does a strong negative correlation in a graph indicate?

Back

A strong negative correlation indicates that as one variable increases, the other variable tends to decrease.

Front

What is the atomic symbol for Chlorine?

Back

The atomic symbol for Chlorine is Cl.

Front

What is the difference between mass and weight?

Back

Mass is the amount of matter in an object, while weight is the force exerted by gravity on that mass.

Front

What is the significance of valence electrons?

Back

Valence electrons determine how an element reacts chemically and its bonding behavior.