Chemistry, 21.01.2021 17:50 kevenluna10oytivm
Circle the choice that gives the best evidence that a chemical reaction occurred.
A. The molecules were separated into individual atoms.
B. The mass of the magnesium changed.
C. Smoke that was trapped between the magnesium atoms was given off.
D. A new substance was formed.
Answers: 1
Chemistry, 21.06.2019 18:30
Calculate the change in entropy if br2(l) is converted to br2(g). s° for br2(l) = 152.2 j/(mol•k) s° for br2(g) = 245.5 j/(mol•k) s° for br(g) = 175.0 j/(mol•k)
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According to the valence shell electron pair repulsion (vsepr) theory, a molecule that has four electron groups around the central atom will exhibit what electron geometry? view available hint(s) according to the valence shell electron pair repulsion (vsepr) theory, a molecule that has four electron groups around the central atom will exhibit what electron geometry? trigonal bipyramidal tetrahedral square planar determination of electron geometry requires information on whether the electron groups are lone pairs or bonding groups.
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Chemistry, 22.06.2019 16:30
How many grams of mgbr2 are needed to produce 75g or metal?
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Circle the choice that gives the best evidence that a chemical reaction occurred.
A. The molecules...
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