2 years ago

How does carbon dioxide affect the Earth's climate?

Chemistry

1 answer:

N76 [4]2 years ago

5 0

Answer:

While carbon dioxide is in the air waiting to be reabsorbed it traps the sun's heat.

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What are the relationships between melting and freezing of a mixture

Kaylis [27]

The temperature is the same but the heat flow is the opposite.

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3 years ago

The equilibrium concentrations of the reactants and products are [ HA ] = 0.260 M [HA]=0.260 M , [ H + ] = 2.00 × 10 − 4 M [H+]=

ValentinkaMS [17]

Answer:

pKa of the acid HA with given equilibrium concentrations is 6.8

Explanation:

The dissolution reaction is:

HA ⇔ H⁺ + A⁻

So at equilibrium, Ka is calculated as below

Ka = [H⁺] x [A⁻] / [HA] = 2.00 x 10⁻⁴ x 2.00 x 10⁻⁴ / 0.260

= 15.38 x 10⁻⁸

Hence, by definition,

pKa = -log(Ka) = - log(15.38 x 10⁻⁸) = 6.813

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3 years ago

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Dimas [21]

Answer: This is true!

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3 years ago

ASAP: The main difference between the gravitational force and electrical force is that

Dahasolnce [82]

Answer:

Electrical force can pull and push

Explanation:

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3 years ago

A 40.0-mL sample of 0.100 M HNO2 (Ka = 4.6 x 10-4 .) is titrated with 0.200 M KOH. Calculate: a. the pH when no base is added b.

In-s [12.5K]

Answer:

a) 2.173

b) 20ml

c) 3.87

d) 4.35

e) 8.8

f) 12.45

Explanation:

chech the attachment for explanationns

4 0

3 years ago