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Maru [420]
3 years ago
10

What items are minerals or contain minerals

Chemistry
1 answer:
NARA [144]3 years ago
7 0

Answer:

computer

Explanation:

copper-wire

electronics-siliver

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They are different by a phase shift of pi/2
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2.What two factors must be held constant for density to be a constant ratio?
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Answer:

Temperature and Pressure

Explanation:

Temperature and pressure cause change in volume.

So any change in volume will alter the ratio of density as given by equation of density.

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Change in volume will alter the ratio.

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During the phase change from solid ice to liquid water, which bonds/forces are being weakened?
vampirchik [111]
I think Intramolecular forces are being weakened
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3 years ago
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Convert 6.93 x 1024 atoms of carbon to moles of carbon.
Aleksandr [31]

Answer: 11.5 moles of carbon

Explanation:

Based on Avogadro's law:

1 mole of any substance has 6.02 x 10^23 atoms

So, 1 mole of carbon = 6.02 x 10^23 atoms

Z moles = 6.93 x 10^24 atoms

To get the value of Z, cross multiply:

(6.93 x 10^24 atoms x 1mole) = (6.02 x 10^23 atoms x Z moles)

6.93 x 10^24 = (6.02 x 10^23 x Z)

Z = (6.93 x 10^24) ➗ (6.02 x 10^23)

Z = 1.15 x 10

Z = 11.5 moles

Thus, there are 11.5 moles of carbon.

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How many grams will be needed​
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