1.
which of the following is a physical change? (2 points)
a newspaper burns when...
Chemistry, 20.12.2019 11:31, leshayellis1591
1.
which of the following is a physical change? (2 points)
a newspaper burns when placed in a fire.
an iron chair rusts when left outside.
a sample of water boils and releases gas.
a plant changes carbon dioxide and water into sugar.
Answers: 3
Chemistry, 23.06.2019 09:00, rebeccathecatt
Which of the following are in a chemical family a. ca, sc, k b. cu, ag, au c. so, ge, sb
Answers: 1
Chemistry, 23.06.2019 10:10, nancysue1975
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(l)+> h3o+(aq)+ch3coo-(aq) show me how to get the answer.
Answers: 3
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