Chemistry, 09.12.2020 22:20 babygirl6571
Select the correct answer.
The image shows the combustion of methane. Which equation represents this chemical reaction?
A. CH4 + O2 - CO2 + H2O
B. 2CHA + 202 - CO2 + 2H20
C. CH4 + 202 - 2002 + H20
D. CHA + O2 - 2002 + 2 H20
E. CH4 + 202 - CO2 + 2H20
Answers: 1
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Which of the following methods uses the decay of atomic particles in an object to find its exact age? a. fossil dating b. geologic dating c. radioactive dating d. relative dating
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Chemistry, 22.06.2019 18:10
Given the following at 25c calculate delta hf for hcn (g) at 25c. 2nh3 (g) +3o2 (g) + 2ch4 (g) > 2hcn (g) + 6h2o (g) delta h rxn= -870.8 kj. delta hf=-80.3 kj/mol for nh3 (g), -74.6 kj/mol for ch4, and -241.8 kj/mol for h2o (g)
Answers: 1
Chemistry, 22.06.2019 21:30
Which of the following changes will decrease the total amount of gaseous solute able to be dissolved in a liter of liquid water? (2 points) decreasing temperature decreasing pressure decreasing surface area decreasing solute concentration
Answers: 1
Chemistry, 23.06.2019 06:00
Nthis lab, you will do experiments to identify types of changes. using the question format you learned (shown above), write an investigative question that you can answer by doing these experiments
Answers: 3
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