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ss7ja [257]
4 years ago
15

Plz answer this! I am stumped

Physics
1 answer:
Gwar [14]4 years ago
6 0
MgCl2
Mg = magnesium
Cl = chlorine

Magnesium + chlorine = magnesium chloride.

This is because compounds are always written with the METAL FIRST and the NON METAL SECOND. the non metal ends in - ide when it reacts with a metal.

So ur answer would be magnesium chloride. :)
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SP1b.
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Answer:

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Vi=initial velocity

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a =  \frac{vf - vi}{t}

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How many times does a human heart beat during a person’s lifetime? How many gallons of blood does it pump? (Estimate that the he
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Answer: The heart pumps 124.2 billion cm³ of blood in a lifetime

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number of heart beat in a year = 365 days x 103,680 = 37,843,200 beats in a year

For every the heart pumps 50cm³ of blood,

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Amount of blood pump in a year = 50 x 37,843,200 = 1,892,160,000cm³ of blood pumped in a year.

Using the estimated lifespan average an individual is 69 years

So in a life time,

The human heart pumps = 1,892,160,000 x 69 years = 124,200,000,000

If the heart pumps 50cm³ of blood per beat, the heart pumps a total of 130,559,040,000 cm³ (130.6 billion cm³) of blood in a LIFETIME.

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