Chem 210  CC#1  5 points   Name _________________________________ Lab____

Circle the correct response. T = true  F = false

T   F   A color change would indicate a chemical change.

T   F   A theory can never be wrong.

T   F   A sample of ice water is heterogeneous.

T   F   All molecules are compounds.

What are the average and the standard deviation of the following data?

1.223g, 1.225g, 1.233g, 1.227g

How many milliliters of solution do you need to measure out to have 56.7g if the density of the solution is 1.333g/mL?

Determine the density of the solid using the following data.

Mass of beaker     123.000 g

Mass of beaker and solid    209.800 g

Volume of water   20.0 mL

Volume of water and solid  60.0 mL