Define the term relative atomic mass, A.

Po-218 is an alpha emitter with a half-life of 3.0 minutes. if a sample contains 59 mg of po-218, how many alpha emissions would occur in 9.0 minutes?

Justify which individual offspring would more likely survive, a fish reproduced from external fertilization or a horse reproduced from internal fertilization.

6. What volume of 6M Ba (OH) 2 will be needed to neutralize 400.0 ml of a 2.0 M HCl solution?

Scientific laws and theories cannot change. They are absolute fact. True False

Which term refers to compounds that can form hydrates but do not contain water molecules? anhydrous dihydrates hydrolytic octahydrates

Iodine pentafluoride gas reacts with iodine fluoride gas producing iodine heptafluoride gas and iodine gas. What is the maximum number of grams of iodine gas that can be produced from a reaction of 10.0 g of iodine pentafluoride with 11.

What evidence of a chemical reaction might you see in dropping an Alka-Seltzer tablet into a glass of water?

State hess's law. how is it used

When the name of a molecule ends in - ose, the molecule is a

How many moles are in. 12 grams of gold.