3 years ago

HELP PLEASE , I NEED A A ON THE TEST I’ll give brain

Chemistry

2 answers:

goldenfox [79]3 years ago

8 0

The answer to this is c! I called it

iragen [17]3 years ago

6 0

Answer:

left

Explanation:

8 has the strongest force

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PLEASE HELP TEST does anyone know the answer???? density question

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The answer is honey.

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When are reactions always spontaneous?

Reika [66]

when ∆G is negative....

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Carbonyl fluoride, COF2, is an important intermediate used in the production of fluorine-containing compounds. For instance, it

lions [1.4K]

Answer: The equilibrium concentration of $COF_2$ is 0.332 M

Explanation:

We are given:

Initial concentration of $COF_2$ = 2.00 M

The given chemical equation follows:

$2COF_2(g)\rightleftharpoons CO_2(g)+CF_4(g)$

Initial: 2.00

At eqllm: 2.00-2x x x

The expression of $K_c$ for above equation follows:

$K_c=\frac{[CO_2][CF_4]}{[COF_2]^2}$

We are given:

$K_c=6.30$

Putting values in above expression, we get:

$6.30=\frac{x\times x}{(2.00-2x)^2}\\\\x=0.834,1.25$

Neglecting the value of x = 1.25 because equilibrium concentration of the reactant will becomes negative, which is not possible

So, equilibrium concentration of $COF_2=(2.00-2x)=[2.00-(2\times 0.834)]=0.332M$

Hence, the equilibrium concentration of $COF_2$ is 0.332 M

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3 years ago

How many atoms of hydrogen are present in 2.92 g of water?

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The molecular weight of water is 18.01528 g/mol.
So in 2.92 grams there are 2.92/18.01528 = 0.1621 mol of particles.

1 mol contains 6,02214 × 10^23 particles by definition.

So the nr of H2O molecules is 0.1621 * 6,02214 × 10^23 = 0,9761 × 10^23.

Every molecule has 2 H atoms, so you have to double that.

2* 0,9761 × 10^23 = 1.952 × 10^23.

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C.
Mark me Brainly!

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