Are those correct if not tell me which are wrong I need help with number 21 also
2 answers:
For 23., you have to find a way to measure your heart rate not increase it. search it up on google.
For number 21, all you have to do is look at the bar graph and put the answer into a unit rate to make it easier
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Fluorine is an element with the highest electronegativity value.
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14.478 is correct if it says it's not correct try rounding
