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Svetradugi [14.3K]
3 years ago
14

Are those correct if not tell me which are wrong I need help with number 21 also

Chemistry
2 answers:
adelina 88 [10]3 years ago
3 0
For 23., you have to find a way to measure your heart rate not increase it. search it up on google.

aniked [119]3 years ago
3 0
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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Based on the molar masses, how can you tell that an equation is balanced?
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Complete the following radioactive decay problem.<br>222 86 RN to 4 2 HE + ?​
Andreas93 [3]

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₈₆²²²Rn    →   ₈₄Po²¹⁸  +  H₂⁴

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