Chemistry, 08.11.2020 22:00 groundcontrol
Which hypothesis is most supported by astronomers? The universe is currently expanding and will continue to expand. Stars could burn out, causing the universe to become dark and cold. Gravity could pull galaxies back together, causing a reverse of the big bang. Dark energy will pull the universe together to form a massive black hole.
Answers: 3
Chemistry, 22.06.2019 07:50
Which of the following electromagnetic waves can create ions?
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Chemistry, 23.06.2019 16:00
How many moles of sulfuric acid (h2so4) are needed to react completely with 6.8 moles of lithium hydroxide (lioh)? 2lioh + h2so4 → li2so4 + 2h2o a) 3.4 mol h2so4 b) 6.8 mol h2so4 c) 10.2 mol h2so4 d) 13.6 mol h2so4 a) 3.4 mol h2so4
Answers: 1
Chemistry, 23.06.2019 18:20
Consider the following system at equilibrium. caco3(s) = ca2+(aq) + co32-(aq) the addition of which compound will cause a shift in equilibrium because of a common ion effect? occia co2 cuso4 na2co3
Answers: 3
Which hypothesis is most supported by astronomers? The universe is currently expanding and will cont...
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