True/false indicate whether the sentence or statement is true or false. the number 1 234 000 in scientific notation is equal to 1.234 x 10^5

Which of these statements explains the difference between nuclear binding energy and the strong nuclear force ?

Sodium sulfate dissolves as follows: na2so4(s) → 2na+(aq) + so42- (aq). how many moles of na2so4 are required to make 1.0 l of solution in which the na concentration is 0.10 m?

If anyone would be able to me out with these three questions it would be these are from the chem 2202 course.