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LiRa [457]
3 years ago
5

Why is having a scientific model of the atom important?

Chemistry
2 answers:
Xelga [282]3 years ago
6 0

Answer:

The answer is D

Explanation:

spayn [35]3 years ago
5 0
2. I believe it would be two but then again this is an incomplete answer so it is not two. It's probably going to be 3. Or 1. Because I took this test before a while back and I'm almost a 100% sure it's 1 or 3. Hope this helps slightly!
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Type your answer in decimal form. Do not round.<br> 2/5 tons = pounds
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answer: 800 lbs
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3 years ago
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Which is most likely why many scientists reject the cold fusion theory?
Masja [62]
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8 0
3 years ago
What is the main difference in covalent bonds in diatomic chlorine and diatomic oxygen? diatomic means two atoms of the same typ
Aneli [31]
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3 0
3 years ago
___________________is the rate that an object moves in a certain direction. Question 3 options:
Nesterboy [21]

Answer: Velocity

Explanation:

i just took the quiz for k12

3 0
3 years ago
Calculate the molality of acetone in an aqueous solution with a mole fraction for acetone of 0.241. Answer in units of m.
Anit [1.1K]

Answer: The molality of solution is 17.6 mole/kg

Explanation:

Molality of a solution is defined as the number of moles of solute dissolved per kg of the solvent.

Molarity=\frac{n}{W_s}

where,

n = moles of solute

W_s = weight of solvent in kg

moles of acetone (solute) = 0.241

moles of water (solvent )= (1-0.241) = 0.759

mass of water (solvent )= moles\times {\text {Molar Mass}}=0.759\times 18=13.7g=0.0137kg

Now put all the given values in the formula of molality, we get

Molality=\frac{0.241}{0.0137kg}=17.6mole/kg

Therefore, the molality of solution is 17.6 mole/kg

3 0
3 years ago
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