In a 108.40 g empty beaker, 2.70 g of sodium reacts with an excess solution of iron ( iii ) acetate . after the reaction, the liquid is poured off and only the iron remains in the beaker and is left out overnight to dry. the next day the iron and the dry beaker have a mass of 110.28g. a calculate the theoretical yield of the iron produced a b calculate the percent yield of iron c if the percent yield is actually 93.1% , how much iron would have formed?

question: ray weighs 100 kilograms, his wrestling partner, bobby, weighs 50 kilograms. if ray moves at 4 m s , how fast will bobby have to run at him to apply an equal amount of kinetic energy?

answer: 8 m/s he needs to run twice as fast to keep up so he has some work to do

explanation:   if the mass has units of kilograms and the velocity of meters per second, the kinetic energy has units of kilograms-meters squared per second squared.

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(jacemorris04)