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2 years ago

List out causes of deforestation

2 answers:

8 0

Direct causes of deforestation are agricultural expansion, wood extraction (e.g., logging or wood harvest for domestic fuel or charcoal), and infrastructure expansion such as road building and urbanization

Vsevolod [243]2 years ago

7 0

Agriculture
Unsustainable forest management
Overpopulation
Logging
Paper

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Please help me i will give brain list

sesenic [268]

Answer:

a. pentane = C5H12

b. Heptane = C7H16

c. Hexyne = C6H10

d. Octene = C8H16

e. Nonane = C9H20

Hope it helps.

7 0

3 years ago

Read 2 more answers

Which of the following properties increases down the periodic table?

givi [52]

Answer: I think it’s atomic radius

Explanation:

7 0

3 years ago

A chemist requires 5.00 liters of 0.420 M H2SO4 solution. How many grams of H2SO4 should the chemist dissolve in water? 129 gram

natali 33 [55]

Answer:

Approximately 206 grams.

Explanation:

How many moles of sulfuric acid $\mathrm{H_2SO_4}$ are there in this solution?

$\text{Number of moles of solute} = \text{Concentration} \times \text{Volume}$ .

The unit for concentration " $\mathrm{M}$ " is equivalent to mole per liter. In other words, $\rm 1\;M = 1\; mol\cdot L^{-1}$ . For this solution, the concentration of $\mathrm{H_2SO_4}$ is $\rm 0.420\;M = 0.420\; mol\cdot L^{-1}$ .

$\begin{aligned}n(\mathrm{H_2SO_4}) &= c(\mathrm{H_2SO_4}) \cdot V\\&= \rm 0.420\;mol\cdot L^{-1}\times 5.00\; L \\&= \rm 2.10\; mol\end{aligned}$ .

What's the mass of that $\rm 2.10\; mol$ of $\mathrm{H_2SO_4}$ ?

Start by finding the molar mass $M$ of $\mathrm{H_2SO_4}$ .

Relative atomic mass data from a modern periodic table:

H: 1.008;
S: 32.06;
O: 15.999.

$\displaystyle M(\mathrm{H_2SO_4}) = 2\times \underbrace{1.008}_{\mathrm{H}} + 1\times \underbrace{32.06}_{\mathrm{S}} + 4\times \underbrace{15.999}_{\mathrm{O}} = \rm 98.072\;g\cdot mol^{-1}$ .

$\text{Mass} = \text{Quantity in moles} \times \text{Molar Mass}$ .

$m = n \cdot M = \rm 2.10\; mol \times 98.072\;g\cdot mol^{-1} \approx 206\; g$ .

In other words, the chemist shall need approximately 206 grams of $\mathrm{H_2SO_4}$ to make this solution. As a side note, keep in mind that the 206 grams of $\mathrm{H_2SO_4}$ also take up considerable amount of space. Therefore it will take less than 5.00 L of water to make the 5.00 L solution.

6 0

3 years ago

How many picograms are in 1 Megagram?

irga5000 [103]

1 x 10^18 picograms
I hope it helps you

5 0

2 years ago

How many moles of O2 will be produced if you react 6 moles of KCIO3 ?

Romashka [77]

9moles of O₂

Explanation:

Given parameters:

Number of moles of KClO₃ = 6moles

Unknown:

Number of moles of O₂ = ?

Solution:

KClO₃ is often known to undergo a decomposition reaction to produce KCl and O₂.

2KClO₃ → 2KCl + 3O₂

From the given equation, we know;

2 moles of KClO₃ will produce 3 mole of O₂

6 mole of KClO₃ will produce $\frac{6 x 3}{2}$ = 9moles of O₂

learn more:

Number of moles brainly.com/question/1841136

#learnwithBrainly

4 0

2 years ago

List out causes of deforestation​

List out causes of deforestation