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Luden [163]
3 years ago
7

scientists cite evidence that earths climate has been changing significantly over the past 50 years. They also argue that change

s to earth’s orbital path are not the cause of these significant changes to climate?
Biology
1 answer:
DENIUS [597]3 years ago
5 0

Answer:

a

Explanation:

i just took it on usatestprep

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A children's liquid medicine contains 100 mg of the active ingredient in 5 mL . If a child should receive 150 mg of the active i
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Answer:

The correct answer is 7.5 ml

Explanation:

The medicine contains 100 mg in 5 ml, that means that the concentration of the active ingredient is 100 mg/5 ml= 20 mg/ml

If we divide a concentration (in mg/ml) into a mass (in mg) we obtaine a volume (in mL). Thus, in order to calculate the mililiters of medicine which contain 150 mg of the active, we have to only divide mass (150 mg) into the concentration of active ingredient as follows:

mL = \frac{150 mg}{20 mg/mL}= 7.5 mL

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