salmonchinchilla477

In how many ways can you change a 20 dollar bill using 10 dollar bills, 5 dollar bills, 2 dollar bills, and 1 dollar bills?

 The chemical formula for copper (II) sulfate pentahydrates is CuSO4*5H2O.

How many copper (Cu) atoms in copper (II) sulfate pentahydrate?

 The chemical formula for copper (II) sulfate pentahydrates is CuSO4*5H2O.

Please answer the following in number only; example, 9

How many copper (Cu) atoms in copper (II) sulfate pentahydrates?   1

How many sulfur (S) atoms in copper (II) sulfate pentahydrates?   1

How many oxygen (O) atoms in copper (II) sulfate pentahydrates?   9

How many hydrogen (H) in copper (II) sulfate pentahydrates?  10

Do not round and use significant figures,

what is the molar mass for copper (II) sulfate pentahydrates 63.55

For mass percent, please use 4 significant figures; example, 16.00%

What is the mass percent for copper (Cu)?     

What is the mass percent for sulfur (S)?    

What is the mass percent for oxygen (O)?    

What is the mass percent for hydrogen (H)?