The answer is A. At the bottom right
Answer:
So she is very anxious because she has to wait 345600 seconds
Explanation:
60 second = 1 minute
60 minute = 1 hour
1 hour has 3600 seconds (60*60)
24 hour = 1 day
3600 second * 24 hours =
1 day has 86400 seconds so in four days
86400 * 4 = 345600
Answer:
32 mols of water
Explanation:
2H2 + O2 ==> 2H2O
What your givens are telling you and what the equation is saying is that
for every mol of O2, you get 2 mols of H2O
So you could do it with the proportion about.
1/16 = 2/x Cross multiply
x = 16 * 2
x = 32
Answer: 208g/mol
Explanation:
First of all we have to write the balance equation for the reaction.
BaCl2 + Fe2(SO4)3____> BaSO4 + FeCl3
After balancing we have.
3BaCl2 +Fe2(SO4)3_____> 3BaSO4 +2FeCl3
Looking at the equation, we find out that 3 moles of barium chloride reacts with 1 mole of iron iii sulfate
Therefore we have
3moles of BaCl2 _____> 400g/mole of iron iii sulfate
Xmole of BaCl2 _____> 200g/mole of iron iii sulfate
X = 2 * 200g/mol divide by 400g/mol
X = 1mole
1 mole of BaCl2 will be need to react with 200g/mol of iron iii sulfate.
This 1 mole of BaCl2 is equivalent to 208g/mol of BaCl2.
Therefore the gram of barium chloride that must be present is = 208g/mol//
