Chemistry, 04.11.2020 23:10 tannerlynn4320
A solution has a hydronium concentration of 4.7 × 10-11. What is the pH of the solution? Round the answer to the nearest hundredth.
Answers: 2
Chemistry, 21.06.2019 19:30
Si una estrella no tiene paralaje medible, ¿qué puedes inferir?
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Chemistry, 22.06.2019 05:00
When you mate two plants together the terms is called? answer it fast as possible plz! i have a test tomorrow!
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Chemistry, 22.06.2019 11:40
Modern pennies are composed of zinc coated with copper. a student determines the mass of a penny to be 2.482 g and then makes several scratches in the copper coaling (to expose the underlying zinc). the student puts the scratched penny in hydrochloric acid, where the following reaction occurs between the zinc and the hcl (the copper remains undissolved): zn(s) + 2 hcl(aq) → h2(g) + zncl(aq)the student collects the hydrogen produced over water at 25 °c. the collected gas occupies a volume of 0.899 l at a total pressure of 79 j mmhg. calculate the percent zinc (by mass) in the penny. (assume that all the zn in the penny dissolves.)
Answers: 1
Chemistry, 22.06.2019 22:00
Scientists often have to deal with numbers that are either very large or very small. for example, the radius of the sun is approximately 696,000 kilometers, while bacterial cells are as small as 1.9 × 10-4 millimeters. express each number in an alternate form.
Answers: 1
A solution has a hydronium concentration of 4.7 × 10-11. What is the pH of the solution? Round the a...
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