Chemistry, 24.08.2019 02:30, ethanyayger

When wind drops its load of sand, it can form a hill called

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Chemistry, 22.06.2019 09:00, Ezekielcassese

What is the percentage composition of carbon in the compound ch4

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Chemistry, 23.06.2019 01:20, cedricevans41p4j3kx

Use the de broglie's wave equation to find the wavelength of an electron moving at 4.5 × 106 m/s. show your work. note: h= plank's constant (6.62607 x 10-34 j s)

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Chemistry, 23.06.2019 04:40, dd123984

Temperature is defined as a. the equivalent of heat. b. a measure of the average kinetic energy of the individual atoms or molecules composing a substance. c. how hot or cold it is. d. the total kinetic energy of the atoms or molecules composing a substance. e. none of the above is correct.

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Chemistry, 23.06.2019 06:40, hackman1216

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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When wind drops its load of sand, it can form a hill called...