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3 years ago

I'm just looking for someone to check my answers on this and correct me if I'm wrong :)

Chemistry

2 answers:

Llana [10]3 years ago

5 0

I believe you are right

Vsevolod [243]3 years ago

4 0

You haven't fully answered the question, and thus, we cannot check it. You would need to provide the answer for "If any of the substances are ionic compounds, which element is the cation and which is the anion? Explain your answer."

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3 years ago

What happens to these physical properties as the strength of intermolecular forces increases?Increase or decrease?a) melting poi

docker41 [41]

Boiling Point, Melting Point, Viscosity, Surface Tension. Decrease: Vapor Pressure.

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3 years ago

Why Are aquifers important to our freshwater supply? 5TH GRADE ANSWER c:

ANEK [815]

Explanation:

Aquifers are porous and permeable formations that stores ground water. The ground water system is made up of mostly fresh water.

An aquifer acts as a reserve for ground water in the environment.
By passing through different formations, water that recharges them are purified.
This makes them fresh and mostly free from salt intrusion

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3 years ago

True or False: Cohesion is the attraction between particles of the same<br> substance

RideAnS [48]

Answer: True

Explanation:

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3 years ago

Determine how much energy is needed to change 50 g of liquid water at 100°C to steam.

marin [14]

Answer:

$Q=113,000J$

Explanation:

Hello there!

In this case, since the vaporization process is carried out in order to turn a liquid into a gas due to the addition of heat, we can use the following heat equation involving the heat of vaporization of water or any other substance:

$Q=m*\Delta _{vap}H$

Thus, since this heat of vaporization for water is 2259.36 J/g, we plug in this amount to obtain the total energy for this process.

$Q=50*2259.36 J/g\\\\Q=113,000J$

Which is positive due to the necessity of heat.

Regards!

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3 years ago