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kompoz [17]
3 years ago
9

The process by which increased levels of CO2 in the atmosphere lead to enhanced growth of vegetation, which then removes CO2 fro

m the atmosphere through photosynthesis is termed a _____.
Chemistry
1 answer:
alexandr1967 [171]3 years ago
8 0

Answer: Carbon cycle

Explanation:

Carbon cycle refers to the interconversion of carbon and its compounds from one form to another in nature. It helps to bring balance to the amount of carbon compounds in nature.

Thus, through the process of respiration plants take in atmospheric carbon dioxide (CO2) into their stomata, giving off oxygen as by-product. While during photosynthesis, CO2 is used to produce sugar molecules such as glucose, that are consumed by consumers.

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If you have 10 grams of Lithium Oxide what will the volume be? Show your work
gogolik [260]

Answer:

Volume occupied by 10 grams of Lithium Oxide at STP is 7.52 L

Explanation:

STP (Standard Temperature and Pressure) : It is used while performing calculation on gases and provide standards of measurements while performing experiment.

According to IUPAC (International Union of Pure And applied Chemistry) , standard temperature is 273.15 K and Pressure is 100 kPa (0.9869 atm). At STP condition 1 mole of substance occupies 22.4 L volume .

Molar mass of Lithium Oxide = 29.8 g/mol

Li_{2}O = 2(6.9) + 15.99 = 29.8

Mass of 1 mole Li_{2}O = 29.8 g

1 mole Li_{2}O occupies, Volume = 22.4 L

29.8 g Li_{2}O occupies, V = 22.4 L

1 g Li_{2}O occupies ,V = \frac{22.4}{29.8}

1 g Li_{2}O occupies ,V = 0.7516 L

10 g tex]Li_{2}O[/tex] occupies ,V = 0.7516 \times10 L

V = 7.52 L

So, volume occupied by Lithium Oxide At STP is 7.52 L

4 0
3 years ago
What are the products of the neutralization reaction between hydrochloric acid, hcl, and magnesium hydroxide mg(oh)2?
Gemiola [76]
Hydrochloric acid + Magnesium Hydroxide 》 Magnesium cloride + water.
6 0
3 years ago
Read 2 more answers
Based on electronegativity differences, between which two elements will a bond result in a highly unequal sharing of electrons?
user100 [1]
The type of bond that will result in unequal sharing of electrons will be C. Nitrogen and Oxygen.
8 0
3 years ago
Read 2 more answers
Consider Al at room temperature. Its electron density is n = 18 x 1022 cm-3 and its electrical resistivity is rho = 2.45 μΩ-cm.
Marianna [84]

Answer:

\tau=1.28968\times 10^{-8}\ s is the electron relaxation time

l=9.6726\times 10^{-4}\ m is the mean free path

Explanation:

Given:

  • electron density of aluminium at room temperature, n=18\times 10^{22}\ cm^{-3}
  • resistivity of aluminium, \rho=2.45\times 10^{-8}\ \Omega.m

<u>From the Drude's model we have:</u>

\tau=\frac{m}{\rho.n.q^2}

where:

\tau= electron relaxation time

m= mass of a charge

q= magnitude of a charge

Putting respective values for electron:

\tau=\frac{9.1\times 10^{-31}}{2.45\times 10^{-8}\times 18\times 10^{22}\times (1.6\times 10^{-19})^2}

\tau=8.0605\times 10^{-9}\ s

<u>Mean free path is given as:</u>

l=v_a.\tau

where:

l= mean free path

v_a= average velocity of electrons

  • Now we have the the general value of average velocity of electrons at room temperature:

v_a=120000\ m.s^{-1}

So,

l=120000\times 8.0605\times 10^{-9}

l=9.6726\times 10^{-4}\ m

8 0
3 years ago
I need help with a chemistry question
mafiozo [28]
What's the question?
8 0
3 years ago
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