Mary and Ron are discussing the properties of water. Mary says that when water freezes, it becomes less dense than liquid water. Ron says it becomes more dense. Who is correct and why? (2 points)
a
Ron, because ice molecules are smaller than liquid water molecules
b
Ron, because ice sinks in liquid water
c
Mary, because ice molecules are larger than liquid water molecules
d
Mary, because lakes and ponds freeze at the bottom first
Answers: 3
Chemistry, 21.06.2019 15:50, leannamat2106
If the mass of the products measured 120g what would the mass of the reactants a. 30g b. 60g c. 120g d. 240g
Answers: 1
Chemistry, 22.06.2019 13:50, kelonmazon2492
Read the chemical equation. 2c2h2 + 5o2 → 4co2 + 2h2o which of the following statements would be correct if one mole of c2h2 was used in this reaction? one mole of oxygen was used in this reaction. five moles of oxygen were used in this reaction. four moles of carbon dioxide were produced from this reaction. two moles of carbon dioxide were produced from this reaction.
Answers: 3
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