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3 years ago

Is magnesium fluoride ionic or covalent

Chemistry

1 answer:

prohojiy [21]3 years ago

3 0

Answer:

lonic

Explanation:

MgF2 ( Magnesium fluoride ) is ionic.

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Part of the investigation must be measuring the pressure inside the lighter fuel tank.

<h3>What is the pressure of a gas?</h3>

The pressure of gas measures how compact the gas molecules are. We know that the more compacted the gas molecules are, the more likely the gas will exist in the liquid state.

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2 years ago

When 108 g of water at a temperature of 23.9 °c is mixed with 66.9 g of water at an unknown temperature, the final temperature o

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Here,

Heat gain by the first sample of water + Heat lost by the second sample of water is equal to zero (0).

Now, Mass of water sample one = 108 g (given)

Mass of water sample two = 66.9 g (given)

Temperature for water sample one = $23.9^{0}C$

Let, temperature for water sample two =x

And, final temperature = $47.2^{0}C$

Now,

$mass of water sample one\times specific heat of water\times (T_{f} - T_{i}) + mass water sample two\times specific heat of water\times (T_{f} - T_{i}) = 0$

where, $T_{f}$ = final temperature

$T_{i}$ = initial temperature

Substitute all the given values in above formula:

$(108 g\times 4.184 J/g . K\times ( 47.2^{0}C- 23.9^{0}C) )+ (66.9 g \times 4.184 J/g . K\times (47.2^{0}C -x))= 0$

$(451.872 J/K \times (23.3^{0}C)) + (279.9096 J/K\times (47.2^{0}C -x)) = 0$

$(10528.6176 J/K(^{0}C)+ (13211.73312 J/K(^{0}C) -279.9096 J/K\times x)= 0$

$(23740.35072 J/K(^{0}C) -279.9096 J/K\times x)= 0$

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$x =\frac{23740.35072 J/K(^{0}C)}{279.9096 J/K}$

[tex x =84.81^{0}C [/tex]

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4 years ago

Answer key which elements puts 7 valence electrons into to 3rd energy level ring

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This element is Chlorine.
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4 years ago

Which of the following best describes the scientific exploration of the atom?

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Where do we pick or where is it

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2 years ago

A solution, such as pure water, with a pH of 7 contains which of the following?

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Answer:

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