Science & Mathematics - 13 January 2007

fill in the blanks

the formula of magnesium oxide is MgO

1)1 mole of magnesium atoms(____grams) and 1 mole of oxygen atoms (____grams) combine to form _____ mole(s) of magnesium oxide (_____grams)

2)12g of magnesium and ____grams of oxygen combine to form ____grams of magnesium oxide

3)when 1.2 grams of magnesium combines with oxygen, the increase in mass is _____grams.

4) if 8 moles of MgO were decomposed to magnesium and oxygen, then we would obtain _____ moles of magnesium and ______ moles of oxygen gas, O2.

2007-01-13 00:08:11 · 2 answers · asked by Sucre 2 in Chemistry

2007-01-13 00:01:34 · 15 answers · asked by Anonymous in Other - Science

what is a golden ratio???

and how is it related to math, science and arts???

2007-01-13 00:00:33 · 6 answers · asked by Anonymous in Mathematics