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zhenek [66]
3 years ago
13

How many moles of MgCl2 are there in 315 g of the compound? mol

Physics
2 answers:
Nikitich [7]3 years ago
8 0
6.022m molecules in one gram
jeka943 years ago
4 0
315g/95gmol-1
3.315 moles of MgCl2
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Charge A and charge B are 2.2 m apart. Charge A is 1.0 C, and charge B is
Ipatiy [6.2K]

Its really hurts

Explanation:

Charge A and charge B are 2.2 m apart. Charge A is 1.0 C, and charge B is

2.0 C. Charge C, which is 2.0 C, is located between them and is in

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6 0
3 years ago
light of a wavelength 600 nm shines on a soap bubble film. For what soap film thickness will destructive interference occur
VashaNatasha [74]

Answer:

The minimum thickness of the soap bubble for destructive interference to occur is 225.56 nm.

Explanation:

Given;

wavelength of light, λ = 600 nm

The minimum thickness of the soap bubble for destructive interference to occur is given by;

t = \frac{\lambda/n}{2}\\\\t = \frac{\lambda}{2n}

where;

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t = \frac{\lambda}{2n} \\\\t = \frac{600*10^{-9}}{2(1.33)}\\\\t = 2.2556 *10^{-7} \ m\\\\t =  225.56 *10^{-9} \ m\\\\t = 225.56 \ nm

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4 0
3 years ago
1. Vector B is multiplied by the scalar 921.5. What angle does the new vector make with the x-axis?
adelina 88 [10]
1. Is 49.5
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a man exerts 700 newtons of force to move a piece of furniture 4 meters. if it takes him 2 seconds to move the furniture, how mu
dybincka [34]

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The work he did:    Work = (700 N) x (4m)  =  2,800 joules

The rate at which
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3 years ago
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stiv31 [10]

It is very difficult for an atom to accept a proton. It can only be done under very special circumstances. So A and C are both incorrect. I don't see how D is possible. The atom does lose 1 electron, but how it gets 21 is think air.

The answer is B which is exactly what happens.

5 0
3 years ago
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