Chemistry, 22.10.2020 21:01 leslieperez67
Which statement best describes a physical change?
O Changes can occur to certain chemical properties of the substance, but the overall shape of the substance will
remain the same.
O Changes can occur to certain physical properties of the substance, but the overall shape of the substance will
remain the same.
O Changes can occur to physical properties of a substance, but the chemical composition of the substance remains
the same
O Changes can occur to chemical properties of a substance, but the chemical composition of the substance remains
the same.
Answers: 1
Chemistry, 21.06.2019 22:30
Which statement best describes the oxidation numbers of the atoms found in magnesium chloride? a. magnesium has a 2- oxidation number and chlorine has a 1+ oxidation number. b. magnesium has a 2- oxidation number and chlorine has a 2+ oxidation number. c. magnesium has a 2+ oxidation number and chlorine has a 1- oxidation number. d. magnesium has a 1+ oxidation number and chlorine has a 1- oxidation number.
Answers: 2
Chemistry, 22.06.2019 03:00
Which best describes how johannes kepler developed his laws of planetary motion
Answers: 3
Chemistry, 22.06.2019 06:40
Three alkali metals in group 1 are a. calcium, strontium, barium b. boron, aluminum, gallium c. sodium, potassium, rubidium d. fluorine, iodine, chlorine
Answers: 1
Which statement best describes a physical change?
O Changes can occur to certain chemical propertie...
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