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2 years ago

100 points!! Brainliest if correct!!

Chemistry

2 answers:

Alex787 [66]2 years ago

7 0

<h3>♫ - - - - - - - - - - - - - - - ~Hello There!~ - - - - - - - - - - - - - - - ♫</h3>

➷ The correct answer is A. They represent two different substances.

The two substances have different chemical properties.

➶ Hope This Helps You!

➶ Good Luck (:

➶ Have A Great Day ^-^

↬ ʜᴀɴɴᴀʜ ♡

dybincka [34]2 years ago

5 0

the answer: They represent different states of the same substance.

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A mixture is made by combining 1.62 lb of salt and 5.20 lb of water.

WINSTONCH [101]

Answer:

23.8

Explanation:

Formula

weight % = weight of solute/ weight of solution x 100

weight of solution = weight of salt + weight of water

weight of solution = 1.62 lb + 5.20 lb = 6.82 lb

weight % = 1.62 / 6,82 x 100

weight % = 0.238 x 100

weight % = 23.8

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2 years ago

In terms of energy, when atoms chemically bond to form a stable compound:_____.

Gennadij [26K]

Answer:

A. Energy is released

Explanation:

Energy is only released when chemical bonds are formed.

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2 years ago

Nitric oxide reacts with chlorine gas according to the reaction: 2 NO( g) + Cl2( g) ∆ 2 NOCl( g) Kp = 0.27 at 700 K A reaction m

11Alexandr11 [23.1K]

Answer: The initial partial pressures of $NO$ and $Cl_2$ is 139.4 torr.

Explanation:

The equilibrium reaction is

$2NO(g)+Cl_2(g)\rightleftharpoons 2NOCl(g)$

initially conc. p p 0

At eqm. p-2x p-x 2x

Given: $p_{NOCl}= 2x= 115torr$

$x=57.5 torr$

The expression for equilibrium constant is :

$K_p=\frac{p_{NOCl}^2}{p_{NO}^2\times p_{Cl_2}}$

$p_{NOCl}$ = 2x =115 torr

$p_{NO}$ = (p-2x) = p-115 torr

$p_{Cl_2}$ = (p-x)= p-57.5 torr

Now put all the given values in this expression, we get

$0.27=\frac{(115)^2}{(p-115)^2\times (p-57.5)}$

$p=139.4torr$

Therefore, the initial partial pressures of $NO$ and $Cl_2$ is 139.4 torr.

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3 years ago

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Answer:

pH=6

Explanation:

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2 years ago

I’ve missed this question twice now. Please help

Molodets [167]

Answer:

then it only gotta be 2 other options .

Explanation:

4 0

2 years ago