When the following equation is balanced, what is the coefficient for hbr?
zn(s) + hbr(aq) -> znbr2(aq) + h2(g)
a) 3
b) 1
c) 6
d) 2

Your roll: experienced electron speech is adressed to: a new "freshman class" of electrons job: write a speech task: you are to pretend that you are giving a speech to a new group of electrons. be sure to mention their placement in an atom, their charge, and their role in chemical bonding (ionic and covalent) be specific!

Iam hoping to create 5.72 grams of glucose. the plant was given 4.75 liters of co2 and 2.81 g of h20. which reactant was the limiting reagent? how much excess mass did we have of the other reactant?

Is the idea of spontaneous generation supported by redi's experiment? justify your answer in 2-3 sentences?