Chemistry, 13.07.2019 18:00 moomoofower
Which of these best explains why a paper clip can float on water? select one: a. water has a very high specific heat. b. water molecules at the surface experience fewer hydrogen bonds than water molecules within the liquid. c. the metal in the paper clip has a lower mass than the water. d. water molecules near the surface produce more buoyant force than water molecules within the liquid?
Answers: 1
Chemistry, 22.06.2019 10:30
Which of these is not an example of chemical weathering? a. iron-rich mineral rusting b. feldspar turning into clay c. limestone reacting with acid d. granite breaking up into sand
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Chemistry, 22.06.2019 14:30
Amixture that has two or more substances that are spread out evenly is called a. compound b. heterogeneous c. substance d. homogeneous
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Chemistry, 22.06.2019 19:00
Which is the solubility product expression for caf2(s)?  [ca2+]/[f–]2  [ca2+][f2–]  [ca]+[f]2  [ca2+][f–]2
Answers: 3
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