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lisabon 2012 [21]
3 years ago
11

If Veronica spins in a circle with the compass in her hand, which force keeps the compass' needle pointing north?

Chemistry
2 answers:
Nesterboy [21]3 years ago
8 0

Answer:

It's a magnetic force, I did it on study island

Hope this helps

Explanation:

Verdich [7]3 years ago
7 0
Magnetic I do believe
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.7 liters of CO represents how many molecules?
Ronch [10]

Answer:

               1.88 × 10²² Molecules of CO

Explanation:

At STP for an ideal gas,

Volume = Mole × 22.4 L/mol

Or,

Mole = Volume / 22.4 L/mol

Mole = 0.7 L / 22.4 L/mol

Mole = 0.03125 moles

Now,

No. of Molecules = Moles × 6.022 × 10²³ Molecules/mol

No. of Molecules = 0.03125 × 6.022 × 10²³ Molecules/mol

No. of Molecules = 1.88 × 10²² Molecules of CO

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