1. Without finding the squares of the numbers,
find the ones place digit for the squares of
the following numbers.
(a) 38
(b) 65
(c) 490
(d) 34

Simplify (1/2)4th power a. (1/16) b.(1/8) c.(1/4)

Ibeg you to me 20. a reaction produces 4.93 l of oxygen, but was supposed to produce 1 mol of oxygen. what is the percent yield?

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