Chemistry, 17.08.2021 01:00 bihanna1234
Which property altered during a chemical change is not altered during a physical change?
A. composition of the matter
B. temperature of the matter
C. volume of the matter
D. phase of the matter
Answers: 1
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Chemistry, 22.06.2019 07:30
11. phosphorus-32 is radioactive and has a half life of 14 days. how much of a 124 mg sample of phosphorus-32 is present after 56 days? a) 7.75 mg b) 15.5 mg c) 31.0 mg d) 62.0 mg
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Aglow stick contains a glass vial with chemicals. when the glow stick is bent, the vial breaks and the chemicals react to produce a glow. a science student observes that a glow stick kept in the freezer glows for a longer duration than a glow stick kept at room temperature. what conclusion can be drawn based on the observation? be sure to note the outcome and test variables in the conclusion.
Answers: 1
Which property altered during a chemical change is not altered during a physical change?
A. composi...
Computers and Technology, 02.08.2019 22:10
Computers and Technology, 02.08.2019 22:10
Computers and Technology, 02.08.2019 22:10
Computers and Technology, 02.08.2019 22:10