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Arectangle has a diagonal 20 inches long that forms angles of 60 and 30 with the sides. find the perimeter of the rectangle. for geometry
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Anitrogen atom and an oxygen atom combine chemically to form nitric oxide. what is nitric oxide?
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Which of the following will cause an increase in the acceleration of an object? increase force decrease force increase mass decrease mass
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Chemistry, 23.06.2019 06:40
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?
Answers: 1
Which compound contains both ionic and covalent bonds a. ki b. cacl2 c. ch2br2 d. nacn...
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