Question

If X is a divalent anion then X cannot be​

Answer 1

Answer:

,_______________________

Answer 2

Explanation:

If x and y are distinct positive integers and x + y is even, what is the remainder when (x + y)^a is divided by 10, where a is a positive integer?

(1) Units digit of y is 6

(2) (xy)^a is divisible by 10.

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