Which is the best name for the compound CaSO4•2H2O?

hydrated calcium sulfate

calcium sulfate trihydrate

calcium sulfate dihydrate

anhydrous calcium sulfate

Which property indicated a minerals response to ultraviolet light? A. Fluorescence B. Radioactivity C. Streak D. Luster

The scientific study of matter and the changes it undergoes is called a. chemistry. c. kinetics. b. physics. d. engineering.

What can happen due to competition with a population?

How many moles are in 4.65 x10^24 molecules of no2?

How does an atom with too few neutrons relative to protons undergo radioactive decay? * by converting proton to a neutron by converting a neutron to a proton by emitting an alpha particle

Liquid water is heated until it boils and becomes water gas. Which statement is true about the water?

You are conducting an experiment on plant growth. You take a plant fresh from the soil that weighs 5 kilograms (kg). Then you dry the plant overnight and determine the dry weight to be 1 kg.

What is the ratio of Fe+3 ions to O2 - ions in a neutral compound? a. 1:2 b. 2:1 c. 2:3 d. 3:2

What is the specific heat capacity of a 17.5g sample of an unknown metal that releases 6700J of heat when it cools from 90 to 25 degrees C?

How can equilibrium of a closed system chemical reaction be disturbed? Select all that apply. Adding or removing products or reactants. Keeping the concentration of products and reactants the same. Keeping the temperature of the system constant.