Chemistry, 18.08.2020 23:01, arielgonzalez809
Select the correct answer. Which statement best describes how a compound is different from an element? A. A compound contains two or more elements in a fixed proportion. B. A compound has a greater mass and volume than an element. C. A compound has a definite shape, but an element does not. D. A compound is a heterogeneous mixture, but an element is a homogeneous mixture. E. A compound is one of several parts of an element.
Answers: 1
Chemistry, 22.06.2019 03:50, sgslayerkingminecraf
Which of the following statements about acidic water is true? a. acid has no effect on the h, o molecules. b. the solution contains a larger number of oh ions than h, o ions. c. the solution contains a larger number of h, o ions than qh ions. d. the solution contains an equal number of h, o ions and oh ions. none of the above e.
Answers: 1
Chemistry, 23.06.2019 11:50, halllawson
What is the oxidation half-reaction for this unbalanced redox equation? cr2o72– + fe2+ → cr3+ + fe3+ cr3+ → cr2o72– cr2o72– → cr3+ fe3+ → fe2+ fe2+ → fe3+?
Answers: 2
Select the correct answer. Which statement best describes how a compound is different from an elemen...
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