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2 years ago

Can somebody please help me here ? i wanna make sure of my answer..

Chemistry

1 answer:

mr_godi [17]2 years ago

8 0

Answer:

[Unfortunately] Answer is A

Explanation:

You should know that 'liquid' is a state of matter and aqueous means that there is water present.

-It is mentioned that barium chloride is a <u>solution</u>. So you can cut off the C option.

-Barium sulfate is a <u>salt</u> which means it's a solid, so you can cut off the D option.

We now have A and B as the only options remaining.

-Dilute sulfuric acid is definitely not a liquid because water is present. (dilute indicates that there is a greater proportion of water)

The answer should be A.

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3 years ago

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4 years ago

Read 2 more answers

fgiga [73]

Answer:

THE PRESSURE OF THE TIRE ON THE TRIP HOME AT THE ROAD SURFACE TEMPERATURE OF 32°C IS 160 kPa.

Explanation:

Initial Pressure = 75 kPa

Initial temperature = 15 °C

Final temperature = 32 °C

Final pressure = unknown

Using the combined equation of gases;

P1V1/T1 = P2V2/ T2

Since the tire will have the same volume of air in it showing that volume of constant both at the repair shop and on the road surface.

The relationship between pressure and temperature is used with constant volume.

P1/T1 = P2/ T2

75 kPa / 15 °C = P2 / 32 °C

P2 = 75 kPa * 32 °C / 15 °C

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P2 = 160 kPa.

So therefore, the pressure of the tire on the trip home when the temperature of the road surface is 32°C is 160 kPa.

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4 years ago

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3 years ago