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Luba_88 [7]
4 years ago
10

Ling decided to do a science project on exercise. She wanted to find out how long it takes for a person's heart rate to slow dow

n to normal after exercise.Which of the following was likely the scientific prediction Ling made about her project?
A.
My heart beats 60 times each minute.
B.
Exercise is important.
C.
A person's heart rate slows down in three minutes.
D.
I found out that my heart beat slows down after five minutes.
Chemistry
1 answer:
forsale [732]4 years ago
8 0
C- a persons heart rate slows down after 5 minutes.
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Answer: 63.88 atm

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3 years ago
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8 0
3 years ago
A compound contains 30. percent sulfur and 70. percent fluorine by mass. the empirical formula of the compound is
iogann1982 [59]
Assume 100 g of compound. This turns percent to mass. Calculate moles: 

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get whole number ratio: 

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3 years ago
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HELP ASAP
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Answer:

C. polar covalent: electrons shared between sulfur and oxygen but attracted more to the sulfur

Explanation:

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