Chemistry, 17.10.2019 20:10 justinsharp3
Calculate the answer. express it in scientific notation and include the correct number of significant figures.
(12 x 10^4) x (5 x 10^-2)
6 x 10^3
6.0 x 10^2
6 x 10^6
Answers: 2
Chemistry, 22.06.2019 10:00
A50.0g sample of liquid water at 0.0 c ends up as ice at -20.0 c. how much energy is involved in this change?
Answers: 1
Chemistry, 22.06.2019 12:30
Sodium sulfate dissolves as follows: na2so4(s) → 2na+(aq) + so42- (aq). how many moles of na2so4 are required to make 1.0 l of solution in which the na concentration is 0.10 m?
Answers: 2
Chemistry, 22.06.2019 19:30
Helium decays to form lithium. which equation correctly describes this decay?
Answers: 2
Chemistry, 22.06.2019 22:30
Rank the four gases (air, exhaled air, gas produced from from decomposition of h2o2, gas from decomposition of nahco3) in order of increasing concentration of co2
Answers: 1
Calculate the answer. express it in scientific notation and include the correct number of significan...
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