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inessss [21]
3 years ago
13

One component of smog is nitrogen

Chemistry
1 answer:
devlian [24]3 years ago
7 0

Answer:

V = 5.97 L

Explanation:

Hello!

In this case, according to the ideal gas law:

PV=nRT

We would need to solve for V as we know the temperature and pressure as the gas it at STP conditions (273 K and 1 atm respectively):

V=\frac{nRT}{P}

Next, we compute the moles in 8 g of NO, given its molar mass of 30.01 g/mol:

n=\frac{8g}{30.01g/mol}=0.267mol

Therefore, we obtain the following volume:

V=\frac{0.267mol*0.08206\frac{atm*L}{mol*K}*273K}{1atm}\\\\V=5.97 L

Best regards!

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Classify each of the following as an observation, a law, or a theory. (a) All matter is made of tiny, indestructible particles c
umka21 [38]

Explanation:

An observation is defined as the process which explains how it is happening (qualitative) and and quantitatively able to measure something about the process.

A law is defined as a verified statement that will remain true under the mentioned circumstances as it is based on the past observations that are carefully tested.

A theory is defined as the explanation of an aspect of natural world that can be tested, modified or rejected as a result of further experiments.

Hence, the given statements are classified as follows.

(a) All matter is made of tiny, indestructible particles called atoms - Theory

(b) When iron rusts in a closed container, the mass of the container and its contents does not change - Observation

(c) In chemical reactions, matter is neither created nor destroyed - Law

(d)  When a match burns, heat is evolve - Observation

8 0
4 years ago
Elvira Walks 4 miles to the west from school and stops at the store. She then walks 3 miles south.
dalvyx [7]

Answer:

distance = 7 miles

displacement = 5 miles

Explanation:

Distance is a scalar quantity as it takes account of magnitude traveled but not the direction traveled from starting point.

The distance traveled is the sum total of distances moved

distance = 4 + 3 = 7 miles

Displacement however, is a vector and measure the shortest possible distance traveled in a given direction from the starting point.

The path of Elvis' walking forms a right-angle triangle with the hypotenuse being the displacement and the other two sides being the distance traveled west and south.

Using Pythagoras' theorem; c² = a² + b²

where c = hypotenuse and a and b are the other two sides

c² = 4² + 3²

c² = 16 + 9 = 25

√c² = √25

c = 5

Therefore, displacement = 5 miles

4 0
3 years ago
Any suggestions or answers
Eva8 [605]

Answer: correct answer is D

It can be traced example in copper rod or iron or any other pure metal

3 0
3 years ago
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Answer:

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4 0
3 years ago
Low tide____.
Fantom [35]

Answer:

i think the answer is A

Explanation:

because in some areas, a regular pattern occurs of one high tide and one low tide each day,

8 0
4 years ago
Read 2 more answers
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