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liubo4ka [24]
4 years ago
15

A chemistry teacher spends 35 minutes grading 1 students lab. They have 153 students who turn in lab papers for each lab. If the

class completed 25 labs, how many minutes will the teacher spend grading lab papers? I just need to know how to set up the problem and the answer, thank you!!
Chemistry
1 answer:
natta225 [31]4 years ago
5 0

Answer:

13,3875 minutes or 2,231.25 hours

Explanation:

153 x 25 = 3,825

person x lab paper = all the lab papers turned in.

35 x 3,825 = 13,3875

minutes x all the lab papers turned in = amount of minutes spent on grading

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How to balance _h2s+ _o2 = _h2o+ _s
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Answer:

<u>2</u>H₂S + <u>1</u>O₂ → <u>2</u>H₂O + <u>2</u>S

Explanation:

<u>SOLUTION :-</u>

Balance it by using 'hit & trial' method , and you'll get the answer :-

<u>2</u>H₂S + <u>1</u>O₂ → <u>2</u>H₂O + <u>2</u>S

<u></u>

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