Chemistry, 04.08.2019 22:30 izaiahfieods
Mrs. harrison mixes some chemicals together in a glass beaker in front of her science class. she asks her students to watch for a chemical reaction when she holds it over a bunsen burner. she sets the flame on "low" and holds the beaker a few inches above the heat. after about 30 seconds, the mixture begins to fizz. what could mrs. harrison do to make the chemical change occur faster? a) add twice as much of a chemical in the mixture b) increase the flame setting to produce more heat c) use a smaller beaker with the same amount of chemicals d) add cold water to the mixture to reduce its temperature
Answers: 2
Chemistry, 22.06.2019 05:30
Compare and contrast physical changes with chemical changes.
Answers: 1
Chemistry, 22.06.2019 05:40
Calculate: select the worksheet tab. this tab you calculate the analyte concentration. ο· fill in the first set of boxes ("moles h2so4" and "moles naoh") based on the coefficients in the balanced equation. (if there is no coefficient, the value is 1.) ο· record the appropriate volumes in the "ml naoh" and "ml h2so4" boxes. ο· record the concentration of the titrant in the m naoh box. click calculate. what is the concentration listed
Answers: 2
Chemistry, 22.06.2019 20:30
Select all the correct answers.which compounds have the empirical formula ch20? (multiple answers)a.c2h4o2b.c3h603c.ch2o2d.c5h1005e.c6h1206
Answers: 2
Chemistry, 23.06.2019 06:30
What is the chemical formula for a compound between li and br? libr li2br libr2 libr3
Answers: 1
Mrs. harrison mixes some chemicals together in a glass beaker in front of her science class. she ask...
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