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2 years ago

PLS

Chemistry

1 answer:

MrRissso [65]2 years ago

8 0

Answer:

A decomposition reaction occurs when one reactant breaks down into two or more products. This can be represented by the general equation: AB → A + B. Examples of decomposition reactions include the breakdown of hydrogen peroxide to water and oxygen, and the breakdown of water to hydrogen and oxygen.

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Animals use oxygen in the process of <br> blank<br> and emit CO2 as a byproduct.

Temka [501]

Answer:

Respiration

Explanation:

The act of breathing, simple as that!

Hope this helped!!

4 0

2 years ago

At a certain temperature, the solubility of N2 gas in water at 4.07 atm is 95.7 mg of N2 gas/100 g water . Calculate the solubil

sertanlavr [38]

Answer: Thus the solubility of $N_2$ gas in water, at the same temperature, if the partial pressure of gas is 10.0 atm is 235mg/100g.

Explanation:-

The Solubility of $N_{2}$ in water can be calculated by Henry’s Law. Henry’s law gives the relation between gas pressure and the concentration of dissolved gas.

Formula of Henry’s law, $C=k_{H}P$ .

$k_{H}$ = Henry’s law constant = ?

The partial pressure (P) of $N_{2}$ in water = 4.07 atm

\ $C= k_{H}\times P\\95.7mg=k_{H}\times 4.07$

$k_{H}=23.5$

At pressure of 10.0 atm

$C= k_{H}\times P\\C=23.5\times 10.0=235mg/100mg$

Thus the solubility of $N_2$ gas in water, at the same temperature, is 235mg/100g

6 0

3 years ago

What general trend applies to solubility?

Marysya12 [62]

Answer:

Basically, solubility increases with temperature. It is the case for most of the solvents. The situation is though different for gases. With increase of the temperature they became less soluble in each other and in water, but more soluble in organic solvents.

5 0

2 years ago

The density of lead is 11.3g/cm^3 and the density of chromium is 7.14g/cm^3. If we have one gram of each metal, what is the rati

Lady bird [3.3K]

The ratio of the volume of lead to the volume of chromium is 22 : 35

Density is simply defined as the mass of a substance per unit volume of the substance.

<h3>Density = mass / volume </h3>

To solve the question given above, we'll begin by calculating the volume of lead and chromium. This can be obtained as follow:

Mass of lead = 1 g

Density of lead = 11.3 g/cm³

<h3>Volume of lead =? </h3>

Density = mass /volume

11.3 = 1 / Volume

Cross multiply

11.3 × Volume = 1

Divide both side by 11.3

Volume = 1 / 11.3

<h3>Volume of lead = 0.088 cm³</h3>

<h3>For Chromium:</h3>

Mass of chromium = 1 g

Density of chromium = 7.14 g/cm³

<h3>Volume of chromium =? </h3>

Density = mass /volume

7.14 = 1 / Volume

Cross multiply

7.14 × Volume = 1

Divide both side by 7.14

Volume = 1 / 7.14

<h3>Volume of chromium = 0.14 cm³</h3>

Finally, we shall determine the ratio of the volume of lead to the volume chromium. This can be obtained as follow:

Volume of lead = 0.088 cm³

Volume of chromium = 0.14 cm³

<h3>Ratio of the volume of lead to chromium =? </h3>

Ratio = Volume of lead / Volume of chromium

Ratio = 0.088 / 0.14

Ratio = 22 / 35

<h3>Ratio = 22 : 35</h3>

Therefore, the ratio of the volume of lead to the volume chromium is 22 : 35

Learn more: brainly.com/question/17262276

5 0

3 years ago

Two copper electrodes dipped in copper sulphate solution are connected to the end of the battery marked with a ''_'' is:

guajiro [1.7K]

Answer:

d) catión

Explanation:

8 0

3 years ago

Read 2 more answers