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2 years ago

Select all that apply tomitosis (Choose 4)

Chemistry

1 answer:

mamaluj [8]2 years ago

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What animal is most like to harmed when a beaver builds a dam

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Small fish or insects.

Explanation:

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What are valence electrons? how many of a magnesium atom’s 12 electrons are valence electrons?

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It has 2 valence electrons.

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3 years ago

How many joules of heat is lost when a 64 g piece of copper cools from 375 oC to 26 oC? The specific heat of copper is 0.38 J/go

Svetlanka [38]

Answer: 8500 J lost or -8500 J

Explanation:

q=cmt

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t=349

q=0.38(64)(349)

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Answer must have 2 sig figs, which means it rounds to 8500 J.

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3 years ago

What is 190 K in degrees Celsius? Show your work for full credit.

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2 years ago

Calculate the mass of 12.3 moles of MgSO4.

Afina-wow [57]

Answer:

614 034 kg

Explanation:

n = m/Mm

m = n * Mm

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m = 12.3 * 49921.92

m = 614 034 kg

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