3 years ago

Describe molecules movement for a liquid,gas?

1 answer:

8 0

In a liquid, molecules move together but they aren’t as tightly packed as solid.

In a gas, molecules are far spread out and move in random motions.

Hope this helps!! :)

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Give an example of each type of intermolecular forces (dispersion,

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Carbon dioxide (CO2) is a gas at room temperature and pressure. However, carbon dioxide can be put under pressure to become a "s

Lunna [17]

Answer:

The mass of this 25 mL supercritical CO2 sample has a mass of 11.7g

Explanation:

Step 1: Given data

The supercritical CO2 has a density of 0.469 g/cm³ (or 0.469 g/mL)

The sample hasa volume of 25.0 mL

Step 2: Calculating mass of the sample

The density is the mass per amount of volume

0.469g/cm³ = 0.469g/ml

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The mass of this 25 mL supercritical CO2 sample has a mass of 11.7g

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4 years ago

What element has 8 valence electrons

Maksim231197 [3]

An element with 8 valence electrons is Neon (Ne).
Ps: Any element under group 18 has 8 valence electrons except for Helium (He).

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4 years ago

Which of the following statements are true of acids and bases?

gtnhenbr [62]

A. Acids increase the number of OH- ions in a solution. FALSE
B. Bases increase the number of OH- ions in a solution. TRUE
C. Acids increase the number of H+ ions in a solution. TRUE
D. Bases increase the number of H+ ions in a solution. FALSE

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3 years ago