Chemistry, 13.07.2019 14:30, mariasoledad1
How are physical and chemical changes similar? a. neither can change the number of atoms of each element that are present b. neither can cause chemical bonds to break c. neither can result in a phase change d. neither can cause a substance to give off heat or light
Answers: 1
Chemistry, 21.06.2019 23:00, slugmilk1090
The agent of mechanical weathering in which rock is worn away by the grinding action of other rock particles is call
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Chemistry, 22.06.2019 07:00, erickamurillo9929
In the cathode ray tube experiment, j. j. thomson passed an electric current through different gases inside a cathode ray tube in the presence of an electric field. in which two ways did this experiment change scientists’ understanding of the atom?
Answers: 2
Chemistry, 22.06.2019 10:30, perezanthony2403
Which describes fat? a: a carbohydrate that produces energy b: a nucleic acid that directs cell function c: a lipid that stores energy d: a protein that speeds up a chemical reaction
Answers: 1
How are physical and chemical changes similar? a. neither can change the number of atoms of each e...
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