Chemistry, 24.11.2020 02:40 brooklyn4682
Los rifles de juguete están compuestos de unos resortes. Si el proyectil de estos rifles es de 20,3g y el resorte se comprime 6,6cm. Halle la constante del resorte (aplicando la conservación de la energía) sí usted desea que el proyectil alcance una altura de 7,5m.
Answers: 3
Chemistry, 22.06.2019 21:30, leenzazou587
Liquid ammonia is produced at high temperatures and under great pressure in a tank by passing a mixture of nitrogen gas and hydrogen gas over an iron catalyst. the reaction is represented by the following equation. n2(g) + 3h2(g) → 2nh3(g) changing all but one experimental condition will affect the amount of ammonia produced. that condition is a) increasing the concentration of both reactants b) changing the temperature within the tank c) decreasing the pressure within the tank. d) increasing only the amount of nitrogen present.
Answers: 1
Chemistry, 22.06.2019 23:00, lufung8627
Consider the reaction: 2al(s) + fe2o3(s) → al2o3(s) + 2fe(s) the δhf for fe2o3(s) = -824.3 kj/mole. the δhf for al2o3(s) = -1675.7 kj/mole. finish the equation. δhrxn = [(1)( kj/mole) + (2)( kj/mole)] - [(1)( kj/mole) + (2) ( kj/mole)]
Answers: 1
Los rifles de juguete están compuestos de unos resortes. Si el proyectil de estos rifles es de 20,3g...
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