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3 years ago

Science problem please help

Chemistry

2 answers:

masha68 [24]3 years ago

8 0

The answer to your question number 5 is b

-Dominant- [34]3 years ago

5 0

Question 5 would be c, and b

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Which statement best describes the collision of gas particles according to the kinetic molecular theory

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3 years ago

Read 2 more answers

Caculate the mass of a solid with a density of 14.2 g/cm cubed and a volume of 350 cm cubed

shepuryov [24]

Answer:

The mass of solid with density 14.2 g/cm3 and volume 350 cm3 is 4.97 Kg.

Explanation:

Formula for density is given below :

$density = \frac{mass}{volume}$

$volume = 350 cm^{3}$

$density = 14.2 g/cm^{3}$

Insert the values in the formula

$14.2 = \frac{mass}{350}$

on cross multiplication :

$mass = density\times volume$

$mass = 14.2\times 350$

$mass = 4970 g$

1 g = 0.001 Kg

$mass =4970\times 0.001 Kg$

mass = 4.97 Kg

Note : Check the units of volume and density carefully

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3 years ago

A graduated cylinder initially contained 11 mL of water and then an 8 g block of wood is put into it, changing the volume to 15

Paul [167]

Answer:

Density is 2

Explanation:

Do the final volume of water divided by the inital

volume of water to get 4

15-11 = 4

Volume = 2

Mass = 8

Then to the equation m/v

8/4 = 2

Density = 2

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3 years ago

The gas in a container is at a pressure of 3.00 atm at 25.0 C. Directions on the container warn the user no to keep it in a plac

Nimfa-mama [501]

Answer:

$P_{2} = 3.272\,atm$

Explanation:

Let consider that gas behaves ideally, the following relation is used:

$\frac{P_{1}}{T_{1}} = \frac{P_{2}}{T_{2}}$

The final pressure is:

$P_{2} = P_{1} \cdot \frac{T_{2}}{T_{1}}$

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$P_{2} = 3.272\,atm$

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3 years ago

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Andrew [12]

To w<span>rite a molecular equation for the gas-evolution reaction that occurs when you mix aqueous hydroiodic acid and aqueous sodium sulfite, please see below:

</span><span>2HCl + Na2SO3 => 2NaCl + H2O + SO3(g)
</span>
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4 0

3 years ago