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Yuliya22 [10]
3 years ago
6

Magnesium oxide is a binary ionic compound. From its formula, MgO, how do you know that Mg is the metal?

Physics
2 answers:
Elanso [62]3 years ago
7 0
Because of the location of Mg on the periodic table.
sukhopar [10]3 years ago
5 0

Answer:

Mg is placed first in the compound.

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When astronomers look at distant galaxies, what sort of motion do they see?
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Hello! You can call me Emac or Eric.

I understand your problem, that question is pretty hard. But I found some information that I think you should read. This can get your problem done quickly.

Please hit that thank you button if that helped, I don’t want thank you’s I just want to know that this helped.

Please reply if this doesn’t help, I will try my best to gather more information or a answer.

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8 0
2 years ago
A toy dart gun generates a dart with a momentum of 140 kg*m/s and a
irinina [24]

Answer:

35 kg

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From the question,

Momentum (I) = mass (m) × velocity (v)

I = m×v................... Equation 1

Where m = mass, v = velocity

make m the subject of the equation

m = I/v.................... Equation 2

Given: I = 140 kgm/s, v = 4 m/s

Substitute these values into equation 2

m = 140/4

m = 35 kg

Hence the mass of the dart is 35 kg

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