Which of the following statements about solutions is false?
A: All solutions are mixtures.
B:...
Chemistry, 11.02.2021 17:30 alijancaz8812
Which of the following statements about solutions is false?
A: All solutions are mixtures.
B: All solutions are homogeneous.
C: All solutions contain two or more compounds.
D: All solutions contain at least two substances.
Answers: 3
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Aphysical reaction is a process in which one or more reactants change into one or more products with different properties. select the best answer from the choices provided t f
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What is the subscript for oxygen in its molecular formula
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How do temperature and salinity affect deepwater currents? as temperatures and salinity levels of water increase, the water rises to the surface where it creates currents as it moves to colder regions. they create changes in wind direction, moving denser water in the same direction as the wind and causing the deepwater circulation patterns found in the ocean. they equalize the forces on undersea currents caused by the coriolis effect as they replace more dense water with less dense water. they create density differences that cause dense deepwater currents to flow toward the equator where they displace less dense, warmer water above them.
Answers: 2
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There are two steps in the usual industrial preparation of acrylic acid, the immediate precursor of several useful plastics. in the first step, calcium carbide and water react to form acetylene and calcium hydroxide: cac2 (s) + 2h2o (g) → c2h2 (g) + caoh2 (s) =δh−414.kj in the second step, acetylene, carbon dioxide and water react to form acrylic acid: 6c2h2 (g) + 3co2 (g) + 4h2o (g) → 5ch2chco2h (g) =δh132.kj calculate the net change in enthalpy for the formation of one mole of acrylic acid from calcium carbide, water and carbon dioxide from these reactions. round your answer to the nearest kj .
Answers: 3
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