2 years ago

How do the particles in each state of matter move?

1 answer:

5 0

Answer:

gas vibrate and move freely at high speeds. liquid vibrate, move about, and slide past each other. solid vibrate (jiggle) but generally do not move from place to place.

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How do magnets move objects?

shutvik [7]

Answer: Magnets have a force which is known as no contact force. This force tries to attract the metallic objects near it, which makes it move.

Explanation:

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3 years ago

Make the following conversion. 0.075 m = _____ cm 7.5 75 0.0075 0.00075

oee [108]

7.5 is the answer. You have to move the decimal 2 places to the right.

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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

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3 years ago

How many protons, neutrons, and electrons are there in one atom of 'H ?

kolezko [41]

Answer:

Explanation:

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3 years ago

Need help on this really bad!

timofeeve [1]

Answer:

Help your self

Explanation:

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2 years ago