3 years ago

PLEASE HELP The arrows in the chart below represent phase transitions.

Chemistry

1 answer:

Alona [7]3 years ago

5 0

1, 2, and 3

hope it helps next time upload with picture

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"M" represents a metallic element, the oxide of which has the formula M2O. The formula of the chloride of M is..................

Rus_ich [418]

The formula of the chloride of M will be MCI2.

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3 years ago

Is gravity a matter??

algol13

Answer:

No, gravity isn't matter

Explanation:

Gravity is a <u>force</u> that attracts matter towards the center of a physical body with mass.

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Calculate the molar solubility of CaF2 at 25°C in a solution that is 0.010 M in Ca(NO3)2. The Ksp for CaF2 is 3.9 x 10-11.

madreJ [45]

Answer:

$Molar \ solubility=3.12x10^{-5}M$

Explanation:

Hello,

In this case, for the dissociation of calcium fluoride:

$CaF_2(s)\rightleftharpoons Ca^{2+}+2F^-$

The equilibrium expression is:

$Ksp=[Ca^{2+}][F^-]^2$

In such a way, via the ICE procedure, including an initial concentration of calcium of 0.01 M (due to the calcium nitrate solution), the reaction extent $x$ is computed as follows:

$3.9x10^{-11}=(0.01+x)(2*x)^2\\\\x=0.0000312M$

Thus, the molar solubility equals the reaction extent $x$ , therefore:

$Molar \ solubility=3.12x10^{-5}M$

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3 years ago

A mixture of reactants and products for the reaction shown below is at equilibrium in a 5.0 L container what would most likely h

Solnce55 [7]

Since the volume decreased, it means that the pressure is going to rise. Thus, the equilibrium of the reaction will shift in the direction that has the least amount of moles.

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hope it helps!

.....

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