Answer:
Explanation:
1. Calculate the molar mass of Na₂SO₄
The molar mass of Na₂SO₄ is 142 g/mol.
2. Calculate the moles of Na₂SO₄
3. Calculate the mass of Na₂SO₄
The following properties are either physical or chemical. Which one is different from the rest based on those two categories? (5
2 answers:
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Answer: Lithium
Explanation: The balanced chemical equation is:
It can be seen, 4 moles of lithium combines with 1 mole of oxygen gas to produce 2 moles of lithium oxide.
Thus 8.4 moles of lithium combines with=of oxygen gas to produce 4.2 moles of lithium oxide.
As, Lithium limits the formation of product, it is the limiting reagent and Oxygen gas is present in excess, it is called the excess reagent. (4.6-2.1)=2.5 moles of oxygen gas are present in excess.