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How many atoms are in 1.2 grams of Ca?
1.59 x 10^-8 grams
.18 x 10^23 atoms
186.21 grams/ 1 mole of Re
56.06 grams/ 1 mole of CaO
4.5 x 10^12 grams of FeO
5.12 x 10^38 grams of He
1.8 x 10^23 atoms
furry animal
How many grams are in 2.4 x 10^15 atoms of Helium (He)?
1.59 x 10^-8 grams
.18 x 10^23 atoms
186.21 grams/ 1 mole of Re
56.06 grams/ 1 mole of CaO
4.5 x 10^12 grams of FeO
5.12 x 10^38 grams of He
1.8 x 10^23 atoms
furry animal
The mole is a...
1.59 x 10^-8 grams
.18 x 10^23 atoms
186.21 grams/ 1 mole of Re
56.06 grams/ 1 mole of CaO
4.5 x 10^12 grams of FeO
5.12 x 10^38 grams of He
1.8 x 10^23 atoms
furry animal
A clown needs 4.5 x 10^15 particles of Helium (He). How many grams of helium does he need?
1.59 x 10^-8 grams
.18 x 10^23 atoms
186.21 grams/ 1 mole of Re
56.06 grams/ 1 mole of CaO
4.5 x 10^12 grams of FeO
5.12 x 10^38 grams of He
1.8 x 10^23 atoms
furry animal
What is the molar mass of CaO?
1.59 x 10^-8 grams
.18 x 10^23 atoms
186.21 grams/ 1 mole of Re
56.06 grams/ 1 mole of CaO
4.5 x 10^12 grams of FeO
5.12 x 10^38 grams of He
1.8 x 10^23 atoms
furry animal
How many atoms are in 10.5 grams of Chlorine gas (Cl)?
1.59 x 10^-8 grams
.18 x 10^23 atoms
186.21 grams/ 1 mole of Re
56.06 grams/ 1 mole of CaO
4.5 x 10^12 grams of FeO
5.12 x 10^38 grams of He
1.8 x 10^23 atoms
furry animal
What is the molar mass of Re?
1.59 x 10^-8 grams
.18 x 10^23 atoms
186.21 grams/ 1 mole of Re
56.06 grams/ 1 mole of CaO
4.5 x 10^12 grams of FeO
5.12 x 10^38 grams of He
1.8 x 10^23 atoms
furry animal
How many FeO particles are there in 21g of FeO?
1.59 x 10^-8 grams
.18 x 10^23 atoms
186.21 grams/ 1 mole of Re
56.06 grams/ 1 mole of CaO
4.5 x 10^12 grams of FeO
5.12 x 10^38 grams of He
1.8 x 10^23 atoms
furry animal
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