The mantle is:

Othicker than the crust

Ohotter than the core

Omade of iron and silicon

Oall of the above

What would you observe in a solution of 30 g of KC1O3 in 100 g of water at 10 c? a. about 5 g of the KC1O3 is dissolved b. about 20 g of the KC1O3 is dissolved c. all of the KC1O3 is dissolved d. none of the KC1O3 is dissolved

How many moles of mercury are in 23.79 grams of mercury?

Which of the following is a chemical change? A. a solution of salt water being diluted as water is added to it B. soil drying as water evaporates C. a rock eroding as the wind removes particles from it D.

How did this impact your ability to trade?

A change of phase never accompanies a. a change in volume b. a change in pressure c. a change in temperature d. a change in density e. a change in structure

What type of process occurs when solidified wax is converted to liquid wax on heating? endothermic exothermic decomposition reversible disintegration

Density is not a physical property of mass. True False

Does skin have a nucleus true or false

Bacteria are only found in decaying matter. A. True B. False

Which is considered a chemical mutagen? tanning beds tobacco X-rays precious metals