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an exact divisor of a number is one that leaves no remainder (a remainder of zero)--example: 27 divided by 3 is 9 but 27 divided bt 4 is 6 remainder 3 so 4 is not an exact divisor of 27 but 3 is
with a protactor haha bt basically noone knws da answer ha ha
u work hard and sweat n finally ull get it! (bt NT in a wk!)
The observed value is unlikely to have occured purely bt chance under the null hypothesis and, as a consequence, you ought to reject the null in favour of the alternative hypothesis.
i think its a and may be c bcz both are non polar and has weak forces of attraction . bt nitrogen has low mass as compared to methanol so may be nitrogen is the right answer.