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aleksley [76]
2 years ago
15

How humans can utilise the carbon cycle

Chemistry
1 answer:
Advocard [28]2 years ago
5 0

Explanation:

Burning fossil fuels, changing land use, and using limestone to make concrete all transfer significant quantities of carbon into the atmosphere

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KClKCl has a lattice energy of −701 kJ/mol.−701 kJ/mol. Consider a generic salt, ABAB , where A2+A2+ has the same radius as K+,K
elena-14-01-66 [18.8K]

Explanation:

It is given that lattice energy is -701 kJ/mol.

Whereas it is known that realtion between lattice energy and radius is as follows.

               Lattice energy \propto \frac{Z_{+}Z_{-}}{r}

where,          Z_{+} = +2,    and Z_{-} = -2

Therefore, lattice energy of AB = 4 \times \text{lattice energy of KCl}

                                                    = 4 \times -701 kJ/mol

                                                    = -2804 kJ/mol

Thus, we can conclude that lattice energy of the salt ABAB is -2804 kJ/mol.

6 0
3 years ago
Write the electron dot structures for the following elements:
Evgesh-ka [11]

Answer:

Drawings of Lewis structure Are attached for your elements

Explanation:

Please open the attachment

7 0
3 years ago
It takes 2,500,00 Liters of Helium to fill the Goodyear Blimp. How many moles is this?
Valentin [98]

Answer:

102.26 moles of helium were required to Fill the Goodyear Blimp

Explanation:

To solve this question we need to use combined gas law:

PV = nRT

<em>Where P is pressure, V is volume of gas (2500L), n are moles of gas (Our incognite), R is gas constant (0.082atmL/molK) and T is absolute temperature</em>

<em />

Assuming atmospheric condition we can write P = 1atm and T = 25°C = 298.15K

Replacing:

PV/RT = n

1atm*2500L / 0.082atmL/molK*298.15K = n

<h3>102.26 moles of helium were required to Fill the Goodyear Blimp</h3>

<em />

3 0
2 years ago
What are the properties of gas
Oksana_A [137]

Answer:

1) easy compressed

2) fills its container

3) far more space

Explanation:

5 0
3 years ago
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the bonding of two amino acids to form a larger molecule requires the addition of nitrogen the release of carbon dioxide the rel
Ksivusya [100]
What is the question here?

3 0
3 years ago
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