10. how many g of cu(oh)2 can be made from 9.1 x 1025 atoms of o?

Molar mass Cu(OH)₂ = 97.561 g/mol

97.561 g Cu(OH)₂ 6.02x10²³ atoms
  ? g Cu(OH)₂ 9.1x10²⁵ atoms

mass = 9.1x10²⁵ * 97.561 / 6.02x10²³

mass = 8.87x10²⁷ / 6.02x10²³

mass = 14734.2 g

hope this helps!

Aphysical change is one that you can put in and remove like a ham sandwich. the stuff you put in there can be changem its not permanet. a chemical change is on that can't be change thats permanet. like when you make a cake and bake it. you can't get those ingredients back.

The answer is d- principle of faunal succession.