Chemistry, 31.05.2021 21:00 kimlyn58p0wyn0
QUESTÃO 1 - A equação que representa corretamente a combustão total do eteno, C2H4, é * A) C2H4 + O2 = 2 CO2 + 2 H2O B) C2H4 = 2 CO2 + 2 H2O C) C2H4 + 2 O2 = 2 CO2 + 2 H2O D) C2H4 + 3 O2 = 2 CO2 + 2 H2O E) C2H4 + 4 O2 = 2 CO2 + 4 H2O
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How have the greenhouse gasses increased from the year 2000 to 2018
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Chemistry, 22.06.2019 19:00
How does a catalyst increase the speed of a reaction? a. the catalyst eliminates the activated complex stage, allowing products to form immediately. b. the catalyst lowers the energy level of the reactants, making it easier for them to react. c. the catalyst makes it easier for the activated complex to form, lowering the activation energy. d. the catalyst raises the energy level of the products, making the reaction finish sooner. reset next
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Chemistry, 22.06.2019 20:00
Acm ruler with main graduations from 1 to 10 from left to right there are 10 secondary graduations between each of the main graduations there is a line that begins. at the left end of the ruler 10 secondary graduations to the left of the “1 main graduation the right end of the line ends on the eighth secondary graduation to the right of 3 how long is the line
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Chemistry, 22.06.2019 20:20
Nitric acid can be formed in two steps from the atmospheric gases nitrogen and oxygen, plus hydrogen prepared by reforming natural gas. in the first step, nitrogen and hydrogen react to form ammonia: (g) (g) (g) in the second step, ammonia and oxygen react to form nitric acid and water: (g) (g) (g) (g) calculate the net change in enthalpy for the formation of one mole of nitric acid from nitrogen, hydrogen and oxygen from these reactions. round your answer to the nearest .
Answers: 3
QUESTÃO 1 - A equação que representa corretamente a combustão total do eteno, C2H4, é * A) C2H4 + O2...
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