1. Calculate the heat change associated with cooling a 350.0 g aluminum bar from
70.0 degrees...
Chemistry, 24.03.2020 21:15 theuniicorntamer
1. Calculate the heat change associated with cooling a 350.0 g aluminum bar from
70.0 degrees C to 25.0 degrees C. The specific heat capacity of aluminum is 0.9.
Answers: 2
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Which of the following elements is a representative element? a. chromium (cr) b. aluminum (al) c. mercury (hg) d. silver (ag)
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Calculate the h3o+ concentration in a solution of acetic acid if the concentration of molecular acetic acid present at equilibrium is 9.97x10^-3 m and k for the dissociation is 1.86x10^-5. ch3cooh(aq)+h2o(> h3o^+(aq)+ch3coo^-(aq)
Answers: 2
Chemistry, 22.06.2019 08:30
The characteristic of two different types of reactions are shown below. reaction a: electrons are gained by the atoms of an element. reaction b: protons are lost by the atom of and element. which statement is true about the atoms of the elements that participate in the two reactions? a: their identity changes in both reaction a and b. b: their identity changes in reaction a but not b. c: their identity changes in reaction b but not a. d: their identity remains the same.
Answers: 1
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