Chemistry, 30.10.2020 16:40, Mackjrmario
If a compound is made up of more than one element why is it considered a pure substance? Choose 2 Group of answer choices The compound has different properties than the individual elements A compound can not be physically separated A compound can not be chemically separated A compound can be physically and chemically separated
Answers: 1
Chemistry, 22.06.2019 03:30, tbeck225
If a solution is considered basic, then a) the hydroxide ion and hydronium ion concentrations are equal. b) the hydroxide ion concentration is less than the hydronium ion concentration. c) the hydronium ion concentration is greater than the hydroxide ion concentration. d) the hydroxide ion concentration is greater than the hydronium ion concentration.
Answers: 1
Chemistry, 22.06.2019 14:30, villarrealc1987
In water, a strong acid will break down into its component parts. a. completely b. partly c. never in water, a weak base will break down into its component parts. a. completely b. partly c. never
Answers: 2
Chemistry, 23.06.2019 03:50, timothymoles
Which best describes the activation energy of a chemical reaction? a. the combined energy of all the reactants b. the amount of energy required for a reaction to occur c. the difference in energy between products and reactants d. the potential energy stored in the bonds of reactants and products
Answers: 1
Chemistry, 23.06.2019 05:50, starfox5454
Which of the following isotopes has the same number of neutrons as phosphorus-31?
Answers: 1
If a compound is made up of more than one element why is it considered a pure substance? Choose 2 Gr...
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