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2 years ago

Select the correct answer.

Chemistry

1 answer:

solong [7]2 years ago

7 0

I think it’s A but I’m not sure, if it’s wrong I’m sorry

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A can of soda is 335ml what is 2 cans of soda in ml

Snezhnost [94]

I can =335ml
2cans=?

2cans×335ml÷1
= 670ml

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3 years ago

Find the work done using data from the PV plot for an isothermal system.

Eduardwww [97]

Answer:

W = - 500 KJ

∴ the work is done on the system

Explanation:

isothermal system:

∴ ΔU = 0; ⇒ Q = W

∴ W = P1V1 -P2V2

⇒ W = ((100KPa)*(25m³)) - ((300KPa)*(10m³))

⇒ W = 2500KPa.m³ - 3000KPa,m³

⇒ W = - 500 KPa.m³ = - 500 KJ

∴ W (-) the work is done on the system

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3 years ago

What is the chemical that had polluted flints drinking water supply

Ber [7]

Answer:

Lead

Explanation:

While taking sample from flint's distillery, theybfoind 13000 ppb or parts per billion lead in the water itself

5 0

3 years ago

a sample of unknown material weighs 500 n in air and 200 n when immesersed in alcholol with a specfic gravity of 0.7 what is the

svet-max [94.6K]

Answer: The mass density is 1166.36 $kg/m^{3}$ .

Explanation:

Given: Weight of sample in air $(F_{air})$ = 500 N

Weight of sample in alcohol $(F_{alc})$ = 200 N

Specific gravity = 0.7 = $0.7 \times 1000 = 700 kg/m^{3}$

Formula used to calculate Buoyant force is as follows.

$F_{B} = F_{air} - F_{alc}\\= 500 - 200 \\= 300 N$

Hence, volume of the material is calculated as follows.

$V = \frac{F_{B}}{\rho \times g}$

where,

$F_{B}$ = Buoyant force

$\rho$ = specific gravity

g = acceleration due to gravity = 9.81

Substitute the values into above formula.

$V = \frac{F_{B}}{\rho \times g}\\= \frac{300}{700 \times 9.81}\\= \frac{300}{6867}\\= 0.0437 m^{3}$

Now, mass of the material is calculated as follows.

$mass = \frac{F_{air}}{g}\\= \frac{500 N}{9.81}\\= 50.97 kg$

Therefore, density of the material or mass density is as follows.

$Density = \frac{mass}{volume}\\= \frac{50.97 kg}{0.0437 m^{3}}\\= 1166.36 kg/m^{3}$

Thus, we can conclude that the mass density is 1166.36 $kg/m^{3}$ .

7 0

2 years ago

HELP PLEASE: Increasing ____ raises the boiling point of a liquid.

Art [367]

Pressure raises the boiling point

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2 years ago

Read 2 more answers