Unit 1 study guide: chemical reactions

Front

What is a solubility test?

Back

A solubility test is performed to determine if a substance will dissolve in a solvent.

Front

What is the density of helium?

Back

The density of helium is 0.179 g/L.

Front

What is density?

Back

Density is how much stuff is in a space, calculated as the mass of a substance divided by its volume.

Front

What property of limestone causes it to have holes after rain?

Back

Limestone is soluble in water, which can lead to the formation of holes.

Front

How many molecules are in 5NaCO3?

Back

There are 5 molecules of Citric acid in 5NaCO3.

Front

What is the melting point of limestone?

Back

The melting point of limestone is 1,517°F.

Front

What does it mean if a substance is flammable?

Back

A flammable substance can easily catch fire and burn.

Front

What is the formula for calculating density?

Back

Density = Mass / Volume.

Front

What happens to limestone when it reacts with acid?

Back

Limestone reacts with acid to produce carbon dioxide gas and soluble salts.

Front

What is the significance of a substance's melting point?

Back

The melting point indicates the temperature at which a solid becomes a liquid.