2 years ago

Who is interested in a middle schooler?

Chemistry

1 answer:

belka [17]2 years ago

6 0

Answer:

I think that middle school teachers are interested in teaching middle schoolers.

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What is the formula for 2-methylnonane

Vera_Pavlovna [14]

Answer:

C10H22

sorry if im wrong

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2 years ago

Please help I can't balance and Google isn't helping

DiKsa [7]

The first one is right and so is eight you have to add them together to see if they go together if they dont add what is missing

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2 years ago

How many gallons of gasoline that is 5% ethanol must be added to 2,000 gallons of gasoline with no ethanol to get a mixture that

Amanda [17]

Answer:

$V_1= 3000 gal$

Explanation:

We have 3 solutions:

Solution 1 (with ethanol)
Solution 2 (no ethanol)
Final solution

$V_f=V_1 + V_2$

and for the ethanol:

$V_f*0.03=V_1*0.05 + V_2*0$

$V_f=V_1 \frac{5}{3}$

Combining:

$V_1 \frac{5}{3}=V_1 + V_2$

$V_1 \frac{2}{3}= V_2$

$V_1= \frac{3}{2} V_2$

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2 years ago

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Mars2501 [29]

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2 years ago

85% of what number is 17? EXPLAIN

vitfil [10]

Answer:

85% of 20 is 17

Explanation:

You can multiply 85% and 20 or subtract 85% from 20.

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