Which is a chemical change?
A) Water evaporates
B) A penny tarnishes
C) Ice melts
D) Rock is ground into sand
Correct Answer:
Verified
Q30: Which is a physical change?
A)A piece of
Q31: To heat 60.0g of water from 30.0ºC
Q32: Magnesium oxide is 60.0% magnesium by mass.What
Q33: Which is not a physical property?
A)Boiling point
B)Physical
Q34: Which of these is not involved in
Q36: The specific heat of aluminum is 0.900J/gºC.A
Q37: Magnesium chloride is 25.3% magnesium by mass.What
Q38: To heat 12.4g of water from 20.0ºC
Q39: The specific heat of iron is 0.473
Q40: The specific heat of iron is 0.473
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