QUESTION 2
A group of grade 11 students decide to have a party at the end of the school year. In order to decorate the
venue, they fill balloons with hydrogen gas and helium gas. Hydrogen filled balloons took 28.4 hours to go flat. How
long would it have taken the helium filled balloons to go flat?
Answers: 3
Chemistry, 22.06.2019 20:30
Identify the correct mole ratio for each substance. sodium chloride (nacl) na: cl = 1: ammonium nitrate (nhno) h: o = 4:
Answers: 1
Chemistry, 22.06.2019 22:10
Which aqueous solution of ki freezes at the lowest temperature? 1) 1 mol of ki in 500. g of water 2) 2 mol of ki in 500. g of water 3) 1 mol of ki in 1000. g of water 4) 2 mol of ki in 1000. g of water
Answers: 3
QUESTION 2
A group of grade 11 students decide to have a party at the end of the school year. In or...
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