Stoichiometric calculation { Nada }
Quiz by N. Ha
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5 questions
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- Q1
Solve the problem: { Al + S --> Al2S3 }
Al + 2S --> 2Al2S3
2Al + 3S --> Al2S3
120s - Q2
Mole ratios are obtained from the
atomic number
periodic table
molar mass
Balanced chemical equation
120s - Q3
How many grams are in 7.8 moles of NaCl?
400g
7800g
452 grams
500g
120s - Q4
{ 2H2 + O2 → 2H2O}
{ How many moles of water can be produced if 8 moles H2 are used }
7.9 moles
8 moles
8.9 moles
9 moles
120s - Q5
Using the following equation:
↠ Fe2O3(s) + 3H2(g) → 2Fe(s) + 3H2O(l)
{ How many moles of iron can be made from 6 moles H2? }
15 moles
10 moles
5 moles
4 moles
120s