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olga55 [171]
3 years ago
13

Which type of energy is associated with random motion of atoms and molecules in a sample of air?

Chemistry
2 answers:
aleksandrvk [35]3 years ago
4 0

The answer is thermal energy
Anastasy [175]3 years ago
3 0
The correct answer is 4. thermal energy because it is concerned with heat. When heat is increased, atoms and molecules in the air will move faster.
Hope this helps~
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Are the answers correct? if not please help fix them
Serggg [28]

Answer:

Looks like they're all right

8 0
3 years ago
Arizona was the site of a 400,000-acre wildfire in June 2002. How much carbon dioxide (CO2) was produced into the atmosphere by
kodGreya [7K]

Answer:

2.97 × 10¹³ g

Explanation:

First, we have to calculate the biomass the is burned. We can establish the following relations:

  • 2.47 acre = 10,000 m²
  • 10 kg of C occupy an area of 1 m²
  • 50% of the biomass is burned

The biomass burned in the site of 400,000 acre is:

400,000acre\times\frac{10,000m^{2} }{2.47acre} \times \frac{10kgC}{m^{2} } \times 50\% = 8.10 \times 10^{9} kgC

Let's consider the combustion of carbon.

C(s) + O₂(g) ⇒ CO₂(g)

We can establish the following relations:

  • The molar mass of C is 12.01 g/mol
  • 1 mole of C produces 1 mole of CO₂
  • The molar mass of CO₂ is 44.01 g/mol

The mass of  produced is CO₂:

8.10 \times 10^{12}gC \times \frac{1molC}{12.01gC} \times \frac{1molCO_{2}}{1molC} \times \frac{44.01gCO_{2}}{1molCO_{2}} =2.97 \times 10^{13} gCO_{2}

4 0
3 years ago
Which of these is an example of physical change?
lana [24]
A. Boiling water is an example of physical change, whereas digesting food, breaking glass, and shoveling snow are not.
6 0
3 years ago
At terminal velocity, which two forces are balanced? *
OlgaM077 [116]

Answer:

friction and air resistance

at terminal velocity, the weight of the object due to gravity is balanced by the frictional forces, and the resultant force is zero.

8 0
2 years ago
Need help but I’m not good in science
Iteru [2.4K]

Answer: The answer is Plant

Stay safe

8 0
2 years ago
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