Sound production is not chemical change.
<span>3.5 moles CaCO3 (1 mole carbon/1 mole CaCO3) = 3.5 moles</span>
Answer: 0.147 grams
Explanation:
To calculate the moles :


According to stoichiometry :
2 moles of
require = 2 moles of
will require=
of 
Thus
is the limiting reagent as it limits the formation of product and
is the excess reagent.
As 2 moles of
give = 3 moles of 
Thus 0.049 moles of
give =
of 
Mass of 
Thus 0.147 g of
will be produced from the given masses of both reactants.
Answer:
1 Mole O₂ / 2 Mole H₂O
Explanation:
The balance chemical equation for the synthesis of water is as follow,
2 H₂ + O₂ → 2 H₂O
In this equation the moles are specified by the coefficients i.e.
2 moles of H₂ reacting with 1 mole of O₂
2 moles of H₂ producing 2 moles of H₂O
1 mole of O₂ producing 2 moles of H₂O
Hence the molar ratio for O₂ and H₂O can be written as,
1 Mole O₂ : 2 Mole H₂O
or,
1 Mole O₂ / 2 Mole H₂O
<span>Fred and Ethel Mertz
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