Chemistry, 01.04.2021 23:30 pinklavalamp
If water is cooled from 90°C to 40°C will the energy lost be a positive number or a negative number? Why?
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When a beta particle is emitted, the mass number of the nucleus a. decreases by one b. increases by one c. remains the same d. decreases by two
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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)
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If water is cooled from 90°C to 40°C will the energy lost be a positive number or a
negative number...
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