Chemistry

Match it! Select the correct answer from the pull down...Good luck!

A reaction occurs in a beaker of fluid, and a white substance settles to the bottom. This precipitate is evidence that what process has occurred?

Which example represents a physical change?

Which process BEST illustrates elements combining to make a new compound?

What does the arrow represent in the chemical equation ?

A rock has a mass of 5.00g and occupies a volume of 25.00cm3. What is the density of the rock if density is mass/volume.

Two liquids are mixed together in a beaker, and a solid settles to the bottom of the beaker. What change has taken place?

Block 1 has a mass of 80g and volume of 100cm3. Block 2 has a mass of 105g and volume of 100cm3. Block 3 has a mass of 78g and volume of 50cm3. Block 4 has a mass of 48g and volume of 50cm3. Based on the data, what can be said about the density?

A stone with a mass of 5g is placed into a graduated cylinder containing 50mL of water. With the stone in the graduated cylinder, the water rises to 75mL. What is the density of the stone if density is mass divided by volume.