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3 years ago

Evaporation is a process that requires energy to occur. Evaporation is ain) reaction

Chemistry

1 answer:

Pepsi [2]3 years ago

5 0

Answer:

endergonic reaction.

Explanation:

an endergonic reaction requires energy to be driven.

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Viefleur [7K]

Answer:

The answer you selected is correct (A)have

Explanation:

Red blood cells one goal which is to carry oxygen throughtout your body.. without it you would die to lack of oxygen.

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2 years ago

Enough of a monoprotic weak acid is dissolved in water to produce a 0.0144 0.0144 M solution. The pH of the resulting solution i

alexdok [17]

Answer:

The value of dissociation constant of the monoprotic acid is $1.099\times 10^{-3}$ .

Explanation:

The pH of the solution = 2.46

$pH=-\log[H^+]$

$2.46=-\log[H^+]$

$[H^+]=0.003467 M$

$HA\rightleftharpoons H^++A^-$

Initially

0.0144 0 0

At equilibrium

(0.0144-x) x x

The expression if an dissociation constant is given by :

$K_a=\frac{[A^-][H^+]}{[HA]}$

$K_a=\frac{x\times x}{(0.0144-x)}$

$x=[H^+]=0.003467 M$

$K_a=\frac{0.003467 \times 0.003467 }{(0.0144-0.003467 )}$

$K_a=1.099\times 10^{-3}$

The value of dissociation constant of the monoprotic acid is $1.099\times 10^{-3}$ .

3 0

3 years ago

__is a term that refers to the amount of space that a substance or an object takes up

Anni [7]

Volume perhaps ?

Hope this helps !

3 0

3 years ago

Can someone please help me!!!

LUCKY_DIMON [66]

sorry but I don't know so sorry

6 0

2 years ago

An alloy is a mixture of what?

Nastasia [14]

Answer:

An alloy is a mixture of chemical elements, which form an impure substance that retains the characteristics of a metal.

Explanation:

Have a nice day. Auf Wiedersehen.

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3 years ago