Type the number

Exercise and reference answers

Questions

1. Answer

   18

   Question

   Molecular mass of water in u

2. Answer

   63

   Question

   Molecular mass of nitric acid in u

3. Answer

   8

   Question

   Grams of oxygen from decomposing 9 g of water

4. Answer

   12

   Question

   Mass number of the carbon isotope used as standard

5. Answer

   16

   Question

   Grams of oxygen that make one mole of oxygen atoms

6. Answer

   23

   Question

   Power of ten in the Avogadro number

Instructions

Type the number only.

Explanation