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4 years ago

Why is it important to protect the ozone layer

Chemistry

2 answers:

Nimfa-mama [501]4 years ago

7 0

If we don’t protect the ozone layer then it will start to seriously damage earth and we will all eventually die out.

Mrrafil [7]4 years ago

7 0

The earth will die without it it is protecting us from damage

You might be interested in

The solubility of oxygen gas in water at 40 ∘c is 1.0 mmol/l of solution. What is this concentration in units of mole fraction?

juin [17]

The formula for mole fraction is:

$mole fraction of solute = \frac{number of moles of solute}{total number of moles of solution}$ -(1)

The solubility of oxygen gas = 1.0 mmol/L (given)

1.0 mmol/L means 1.0 mmol are present in 1 L.

Converting mmol to mol:

$1.00 mmol\times \frac{1 mol}{1000 mmol} = 0.001 mol$

So, moles of oxygen = 0.001 mol

For moles of water:

1 L of water = 1000 mL of water

Since, the density of water is 1.0 g/mL.

$Density = \frac{mass}{volume}$

$Mass = 1.0 g/ml\times 1000 mL = 1000 g$

So, the mass of water is 1000 g.

Molar mass of water = 18 g/mol.

Number of moles of water = $\frac{1000 g}{18 g/mol} = 55.55 mol$

Substituting the values in formula (1):

$mole fraction = \frac{0.001}{55.55+0.001}$

$mole fraction = 1.8\times 10^{-5}$

Hence, the mole fraction is $1.8\times 10^{-5}$ .

7 0

3 years ago

Polonium-218 undergoes beta decay, converting a neutron into a proton. Then the daughter isotope undergoes another beta decay, a

sergij07 [2.7K]

Answer: $^{218}_{84}Po \rightarrow ^{218}_{85}At + ^{0}_{-1}e$ is the correct equation for beta decay.

Explanation:

When a beta particle, that is, $^{0}_{-1}e$ is emitted in a radioactive decay then it is known as beta decay.

Therefore, beta decay of Polonium-218 is as follows.

$^{218}_{84}Po \rightarrow ^{218}_{85}At + ^{0}_{-1}e$

Therefore, we can conclude that $^{218}_{84}Po \rightarrow ^{218}_{85}At + ^{0}_{-1}e$ is the correct equation for the given beta decay.

8 0

3 years ago

An acrostic poem with the word energy

ExtremeBDS [4]

Eating good food gives us more energy. Natural gas is used for heat and for cooking. Electricity and coal are two forms of energy. Renewable energy includes sea currents and solar power. Geothermal energy is natural heat from the inside of the earth. You need energy in order to move.

7 0

4 years ago

Read 2 more answers

What do non-metals do if they need 8 valence electrons and can't find a metal?

kati45 [8]

Answer:

sharing of electron

Explanation:

As seen in carbon. carbon has four electrons in his outermost shell and needs for electron by sharing of electrons it can gain it by another carbon

3 0

3 years ago

A student must use 220 mL of hot water in a lab procedure. Calculate the amount of heat required to raise the temperature of 220

Inessa [10]

Answer:

64,433.6 Joules

Explanation:

<u>We are given</u>;

Volume of water as 220 mL
Initial temperature as 30°C
Final temperature as 100°C
Specific heat capacity of water as 4.184 J/g°C

We are required to calculate the amount of heat required to raise the temperature.

We know that amount of heat is calculated by;

Q = mcΔT , where m is the mass, c is the specific heat, ΔT is the change in temperature.

Density of water is 1 g/mL

Thus, mass of water is 220 g

ΔT = 100°C - 30°C

= 70°C

Therefore;

Amount of heat, Q = 220g × 4.184 J/g°C × 70°C

= 64,433.6 Joules

Thus, the amount of heat required to raise the temperature of water is 64,433.6 Joules

7 0

3 years ago