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r-ruslan [8.4K]
3 years ago
6

What is the cause of desertification

Chemistry
2 answers:
Dominik [7]3 years ago
8 0

Answer:

C overgrazing is the answer

liq [111]3 years ago
8 0

Answer:

yeah he got it right

Explanation:

it's C

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The combustion of gasoline produces carbon dioxide and water. Assume gasoline to be pure octane (C8H18) and calculate the mass (
Mnenie [13.5K]

Answer:

3.1 kg

Explanation:

Step 1: Write the balanced combustion equation

C₈H₁₈ + 12.5 O₂ ⇒ 8 CO₂ + 9 H₂O

Step 2: Calculate the moles corresponding to 1.0 kg of C₈H₁₈.

The molar mass of C₈H₁₈ is 114.23 g/mol.

1.0 × 10³ g × 1 mol/114.23 g = 8.8 mol

Step 3: Calculate the moles of CO₂ produced from 8.8 moles of C₈H₁₈

The molar ratio of C₈H₁₈ to CO₂ is 1:8. The moles of CO₂ produced are 8/1 × 8.8 mol = 70 mol.

Step 4: Calculate the mass corresponding to 70 moles of CO₂

The molar mass of CO₂ is 44.01 g/mol.

70 mol × 44.01 g/mol = 3.1 × 10³ g = 3.1 kg

5 0
2 years ago
A small container of perfume is opened in a classroom. Soon every student in the room smells the perfume. Explain this in terms
melamori03 [73]

Answer: possibly diffusion

Explanation:

all particles are in motion unless at a certain degree so they'd spread throughout the room diluting as they continue to spread out.

6 0
2 years ago
Which of these experimental designs could lead to bias?
Lilit [14]
Hey there i see you need help well i am here to do just that it is c because if you are getting paid your more likely to lie ans say"great" things. 
hope this helps 
7 0
3 years ago
What is the volume of 88 grams of CO2 gas at STP?
I am Lyosha [343]
! mole of CO2 at STP has a volume of 22.4 liters
88 grams = 2 moles 

so the required volume = 2*22.4 = 44.8 liters
3 0
3 years ago
An atom has the following electron configuration.
Wewaii [24]

Answer: 5

Explanation: add up all the electrons and it will amount to 23. Arranging by the old model for electronic configuration, we have : 2, 8, 8, 5

The last number being 5 represent its valence electron

3 0
3 years ago
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