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exis [7]
3 years ago
13

Select a depiction of a gas sample, as described by kinetic molecular theory, containing equal molar amounts of helium, neon, an

d krypton. each atom has a "tail" to represent its velocity relative to the others in the mixture.
Chemistry
1 answer:
VLD [36.1K]3 years ago
8 0
She gonna skateboard p
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If two people attempt the same maneuver, what determines the amount of force that each is required to exert?
Helen [10]

Answer:

Explanation:

you need to change either the turn of the jump or push off higher or lower from the wall

3 0
3 years ago
Is the bond formed between each pair of atoms pure covalent (a.k.a. nonpolar covalent), polar covalent, or ionic?
swat32

Answer:

So, look up for electronegativity table

There's a continuum for deciding whether the bond is non-polar, polar, or ionic

If electronegativity difference is less than 0.4 it's non-polar

Explanation:

Pls vote my answer as brainliest

7 0
3 years ago
Name two ways in which carbon dioxide is added to the troposphere.
Vedmedyk [2.9K]

Answer:

Carbon dioxide is added to the atmosphere through cellular respiration and the combustion of fossil fuels

Explanation:

3 0
3 years ago
You have 2 moles of NaOH how many molecules of NaOH?
kaheart [24]

Answer:

12.044 X 10^23 molecules of NaOH

Explanation:

because NaOH is an ionic bond, we should be asking how many <em>formula units </em> are in 2 moles of NaOH, there are 0 molecules since NaOH is measured in formula units.

but for the sake of the problem I'll assume NaOH is measured in molecules

for every mol of something there are 6.022 X 10^23 of something of that something.

so there are 6.022 X 10^23 molecules for every mol of NaOH

that means we have 2 X 6.022 X 10^23 molecules in 2 moles of NaOH = 12.044 X 10^23 molecules of NaOH

4 0
3 years ago
The car has a mass of 1200kg. The car has a forward force of 3400N but friction has a force of 400N going against it. What is th
jonny [76]

The acceleration of the car : 2.5 m/s²

<h3>Further explanation</h3>

Newton's 2nd law explains that the acceleration produced by the resultant force on an object is proportional and in line with the resultant force and inversely proportional to the mass of the object  

∑F = m. a  

<h3 />

Mass of the car = 1200 kg

Forward force = 3400 N

Friction force = 400 N

The direction of motion of the friction force will be opposite to the forward force, so that both of them can be subtracted to get the value of the net force (net force: combination / sum of all forces acting on an object)

\tt \sum F=3400-400=3000~N

So the acceleration :

\tt a=\dfrac{\sum F}{m}\\\\a=\dfrac{3000}{1200}\\\\a=2.5~m/s^2

6 0
3 years ago
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