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lorasvet [3.4K]
2 years ago
14

If atoms are made of smaller parts suchas electrons, why are atoms considered thebasic unit of matter?

Chemistry
2 answers:
drek231 [11]2 years ago
6 0

Answer:

Explanation:

The reason for that is because atoms make elements needed for survival(oxygen, hydrogen, nitrogen, carbon, etc.).

Anika [276]2 years ago
6 0

Answer:

As atoms make up elements

Hope this helped :)

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Which statement best describes the collisions of gas particles according to the kinetic-molecular theory?​
allochka39001 [22]

B. As particles travel in straight lines, their paths sometimes meet, and then they bounce apart with no gain or loss of energy.

Explanation:

The best statement that describes the collision of gas particles according to the kinetic-molecular theory is that as particles travel in straight lines, their paths sometimes meet and then they bounce apart with no gain or loss of energy.

  • The kinetic molecular theory is used to explain the forces between molecules and their energy.

One of the postulate suggests that, when molecules collide with each other, or with the wall of the container, there is no loss or gain of energy.

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Particle collision brainly.com/question/6439920

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4 0
2 years ago
How many moles are in 2.0 grams of Na?
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Answer:

46

Explanation:

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3 0
2 years ago
What is the mass (in grams) of 9.79 × 1024 molecules of methanol (CH3OH)?
nevsk [136]
We will use this formlula: Mass in grams = Number of moles x Molecular mass of 1 mole.

Since, we know the avagadro number is 6.02 x 10²³, we only have two unknown values left which are the molecular mass of CH3OH and its mole.

Molecular Mass: C = 12, H= 1, O = 16, since we have C=12, H4 = 4, O = 16, we will add them up: 12 + 4 + 16 =32

We know that one mole of anything = 6.02 x 10²³.
So we will use this formula to find the mole of methanol: Number of moles = Number of molecules / Avagadro number

Number of moles of CH3OH = (9.79 x 10^24)/6.02 x 10²³) =  16.263 moles.

Now we know that the molecular mass = 32 and the mole is = 16.263.

Now we can find its mass by using this formula: <span>Mass in grams = Number of moles x Molecular mass of 1 mole.
</span>
Mass in grams = 16.263 x 32 = 520g






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Size (length+width) approx.
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4. Which atomic particles are found inside the nucleus of an atom?
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the atomic particles in the necluse are called ions which are positive and negive charged atoms

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