Chemistry, 22.01.2021 18:20 ashtor1943
Substances change state when they move between solid, liquid, and
gaseous forms. What happens to a substance when it changes from one
state to another?
A. A reduction in mass
B. An increase in mass
C. A chemical change
D. A physical change
Answers: 3
Chemistry, 22.06.2019 02:40
The difference between the atomic number of an element and the element’s atomic mass is the number of ions.
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Chemistry, 22.06.2019 23:10
Match the formula for the following compound: magnesium sulfate heptahydratemgs·7h2omg2so4·7h2omg(so4)2·7h2omgso4·7h2o
Answers: 1
Chemistry, 23.06.2019 14:00
Comparing john newland’s octaves with the modern periodic table, which 5 elements have been discovered between hydrogen and iron since newland’s time?
Answers: 3
Substances change state when they move between solid, liquid, and
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