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Blababa [14]
2 years ago
6

Our main source of energy is the sun. True or False

Chemistry
1 answer:
garri49 [273]2 years ago
6 0
Our main source of energy is the sun. True.

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What is the gram formula mass of Ca3(PO4)2
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Mass Molar of Ca_{3} (PO_4)_2
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Mass Molar of Ca_{3} (PO_4)_2 = 120 + 62 + 128 = 310 g/mol

Therefore: <span>What is the gram formula mass of Ca3(PO4)2 ?
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3 years ago
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Paha777 [63]

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(a)

Explanation:

Hello,

In this case, the temperature required to boil argon, it means, transform it from liquid to gas is -197 °C. In such a way, since the temperature inside the steel sphere is -190 °C, which is greater than the boiling point, we realize argon is gaseous, therefore, the molecules will be spread inside the sphere as they will be moving based on the kinetic theory of gases.

For that reason, answer is scheme (a).

Best regards.

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