What is the amount of solute per given amount of solvent?

1.) dilution

2.) solubility

3.) saturation

4.) concentration

Cobalt fluoride crystallizes in a closest packed array of fluoride ions, with the cobalt ions filling one-half of the octahedral holes. What is the formula of this compound?

Scientist use their knowledge of the half-life of carbon and uranium isotopes to measure the age of the rock or fossil.

Which of the following statements about the greenhouse effect is false? A) Greenhouse gases include carbon dioxide, chlorofluorocarbons, and methane. B) Some of the heat from the sun's light is absorbed.

Which of the following elements has the most properties in common with molybdenum (Mo) ? A) manganese (Mn) B) iron (Fe) C) vanadium (V) D) chromium (Cr)

The Bohr model of an atom shows a nucleus with electrons circling around it. What does the Bohr model show that makes it a useful model for understanding atoms?

how many grams of water are produced when 15 grams of magnesium hydroxide are reacted with sulfuric acid

Which would have the lowest input force? A short lever with a large fulcrum A long lever with the fulcrum as far as possible from the load A Short lever with the fulcrum as close as possible to the load A long lever with the fulcrum as close as

How many valence electrons does bromine have

When you grasp a hot cup of cocoa with cold hands, which way does the heat transfer occur? Explain.

How many molecules are there in 1 miligram Au?