Questions by Hasitha Jayawardana

Questions by Hasitha Jayawardana

I need help on all of #1

asked Dec 13, 2018

2 answers

2 votes

155k views

One of the main components of pearls is calcium carbonate (CaCO3). If pearls are put into an acidic solution, they dissolve: CaCO3(s) + 2HCl(aq) ➡ CaCl2(aq) + H2O(l) + CO2(g). How many moles of CaCO3 can

asked Jun 23, 2017

2 answers

1 vote

163k views

Jan's age is three years less than twice tritts age. The sum of their ages is 30. Find their ages.

asked May 3, 2017

2 answers

1 vote

220k views

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