Help me, ANSWER ALL 6 QUESTION, if you completed, you will have 30 POINTS
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Chemistry, 22.05.2020 23:06, josie311251
Help me, ANSWER ALL 6 QUESTION, if you completed, you will have 30 POINTS
Answers: 2
Chemistry, 22.06.2019 10:00, Cythina2007
The reactions shown here can be combined to make the overall reaction c(s) + h2o(g) ⇌ co(g) + h2(g) by reversing some and/or dividing all the coefficients by a number. a. c(s) + o2(g) → co2(g) k=1.363×10^69 b. 2 h2(g) + o2(g) → 2 h2o(g) k=1.389×10^80 c. 2co(g) + o2 (g) → 2 co2(g) k=1.477×10^90
Answers: 1
Chemistry, 22.06.2019 11:40, Wemaybewrong
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 13:50, hannahmyung1113
Amap that uses a range of colors and shading to represent the elevation, depth, or landscape of specific features on earth is a/an map.
Answers: 3
Chemistry, 22.06.2019 14:30, darkghostmist
What type of reaction fuels the processes seen here?
Answers: 2
History, 28.08.2019 13:00
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