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natulia [17]
2 years ago
6

In which layer of the atmosphere can you find meteors?

Chemistry
1 answer:
asambeis [7]2 years ago
5 0
The answer would be d :)
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What is the volume of 8.80 g of CH4 gas at STP?
Ann [662]

Answer:

12.32 L.

Explanation:

The following data were obtained from the question:

Mass of CH4 = 8.80 g

Volume of CH4 =?

Next, we shall determine the number of mole in 8.80 g of CH4. This can be obtained as follow:

Mass of CH4 = 8.80 g

Molar mass of CH4 = 12 + (1×4) = 12 + 4 = 16 g/mol

Mole of CH4 =?

Mole = mass/Molar mass

Mole of CH4 = 8.80 / 16

Mole of CH4 = 0.55 mole.

Finally, we shall determine the volume of the gas at stp as illustrated below:

1 mole of a gas occupies 22.4 L at stp.

Therefore, 0.55 mole of CH4 will occupy = 0.55 × 22.4 = 12.32 L.

Thus, 8.80 g of CH4 occupies 12.32 L at STP.

6 0
3 years ago
What instrument is usually used to measure atmospheric pressure
geniusboy [140]
A machine called a barometer is what is used to measure atmospheric pressure :D
8 0
3 years ago
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1. Decomposition reactions can be classified into three types. Pick the correct
Alex777 [14]

Answer:

Explanation:

Option A is the correct answer

3 0
3 years ago
100 points!! Brainliest if correct!!
Nadya [2.5K]
Here is your answer

B. NaCl

_________________
In option A. Na isn't present.
In option C. there are two atoms of Na
So, option B is correct

HOPE IT IS USEFUL
4 0
3 years ago
Read 3 more answers
How did the Bohr model of the atom affect scientific thought?
Vadim26 [7]

Answer:

C. Scientists accepted the model at first but later rejected it.  

Explanation:

Scientists accepted the model at first because it explained the hydrogen emission spectrum.

However, with the development of quantum mechanics, scientists had to modify the model (not reject it).

Electrons still had specific energies, but they no longer travelled in fixed orbits.

Instead, electrons had a probability of being found in a given region of space.

5 0
3 years ago
Read 2 more answers
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