Module 3 Review Part 1

Front

What is an endothermic reaction?

Back

An endothermic reaction is a chemical reaction that absorbs heat from its surroundings, resulting in a decrease in temperature.

Front

How do you calculate density?

Back

Density is calculated by dividing the mass of an object by its volume (Density = Mass/Volume).

Front

What two measurements do you need to calculate density?

Back

You need to measure the mass and the volume of the object.

Front

How do you calculate the mass of an object using density?

Back

To calculate mass, multiply the density of the object by its volume (Mass = Density x Volume).

Front

Can density help identify unknown substances?

Back

Yes, density can be used to find the identity of an unknown substance by comparing its density to known values.

Front

What is the formula for density?

Back

The formula for density is Density = Mass/Volume.

Front

What happens in an exothermic reaction?

Back

In an exothermic reaction, heat is released into the surroundings, causing an increase in temperature.

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 units are commonly used to measure mass?

Back

Common units for mass include grams (g) and kilograms (kg).

Front

What units are commonly used to measure volume?

Back

Common units for volume include liters (L) and cubic centimeters (cm³).