Chemistry, 02.09.2019 16:30 jasjoh39p0rp6i
Determine the number of moles of the compound and determine the number of each type of atom in each of
the following
(a) 2.12 g of potassium bromide, kbr
(b) 0.1488 g of phosphoric acid, h3po4
(c) 23 kg of calcium carbonate, caco3
(d) 78.452 g of aluminium sulfate, al2(so4)3
0.1250 mg of caffeine, c8h10n4o2
Answers: 1
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The diagram shows the positions of the sun, moon and earth during spring tides, when the high tides are at their highest and low tides at their lowest. what is it about these positions that causes these high and low tides?
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Chemistry, 23.06.2019 01:00
Substance 33°f 100°f peanut oil solid liquid margarine solid liquid chocolate chips solid liquid which conclusion fits the data in the table? a. heat chemically changes chocolate and margarine. b. all solids become liquid at 100°f. c. removing heat from a substance it to melt. d. matter may change shape when it is heated.
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Chemistry, 23.06.2019 01:00
Which statement characterizes synthetic polymers? a. they come from animals and plants. b. they are found in nature. c. they are made in a lab. d. they are components of starch.
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