Chemistry, 10.10.2019 18:30, kenyasutton10
A50.0-gram block of copper at 10.0°c is carefully lowered into 100.0 grams of water at 90.0°c in an insulated container. which statement describes the transfer of heat in this system?
(1) the water loses heat to the block until both are at 10.0°c.
(2) the block gains heat from the water until both are at 90.0°c.
(3) the water loses heat and the block gains heat until both are at the same temperature that is between 10.0°c and 90.0°c.
(4) the water gains heat and the block loses heat until both are at the same temperature that is between 10.0°c and 90.0°c.
Answers: 3
Chemistry, 22.06.2019 20:30, lexibyrd120
Water undergoes a large change in density at 0 ∘ c as it freezes to form ice. calculate the percent change in density that occurs when liquid water freezes to ice at 0 ∘ c given that
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Chemistry, 23.06.2019 01:00, tjeffers90028
Iron (fe) reacts with copper sulfate (cuso4) to form iron (ii) sulfate. in this reaction, cu2+ gains electrons to form cu. which statement is true about this reaction? fe(s) + cuso4(aq) → feso4(aq) + cu(s)
Answers: 3
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