Chemistry, 25.11.2021 08:20 mariobros3090
a mixture of three gases (N2, Ar, and O2) at 2.6 atm is found to contain 23% N2 and 3.0% Ar. What is the partial pressure of O2
Answers: 3
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The combustion of methane, ch4, releases 890.4kj/mol. that is, when one mole of methane is burned,890.4 kj are given off to the surroundings. this meansthat the products have 890.4 kj less than the reactants.thus, ah for the reaction = - 890.4 kj. a negative symbolforah indicates an exothermic reaction.ch (g) + 20 (g)> co2 (g) + 2 h0 (1); ah = - 890.4 kga) how much energy is given off when 2.00 mol of ch,are burned? b) how much energy is released when 22.4g of ch. areburned?
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What properties would have caused early researchers to name hydrogen "inflammable air”
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Determine the osmotic pressure at 25 °c of an aqueous solution that is 0.028 m nano3. a) 0.685 atm b) 0.0729 atm c) 1.37 atm d) 0.0364 atm e) 2.06 atm
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Chemistry, 23.06.2019 14:00
Which is not true regarding reaction rates? (2 points) catalysts are not used up in the reaction. catalysts speed up reactions by lowering the activation energy. reaction rates decrease as the concentration of reactants decrease. during reactions, concentrations of all reactants decrease at the same rate.
Answers: 1
a mixture of three gases (N2, Ar, and O2) at 2.6 atm is found to contain 23% N2 and 3.0% Ar. What is...
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