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2 years ago

Oil doesn't mix with water because

1 answer:

5 0

<span>Oil and water don't mix because oil is made up of non-polar molecules while water molecules are polar in nature. Because water molecules are electrically charged, they get attracted to otherwater molecules and exclude the oil molecules. (this is from wiki)</span>

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Hard water deposits (calcium carbonate) have built up around your bathroom sink. which of these substances would be most effecti

Stolb23 [73]

Hello!

Vinegar would be most effective in dissolving the deposits of Hard Water.

Vinegar (CH₃COOH) is a weak acid, while Calcium Carbonate (CaCO₃), being the salt of a weak acid, will be a weak base. These two compounds will react together in the following way:

2CH₃COOH + CaCO₃ → (CH₃COO)₂Ca + H₂CO₃

H₂CO₃ reacts further to yield Water and CO₂

H₂CO₃ → H₂O + CO₂(g)

So, vinegar would be effective at dissolving CaCO₃, and we should see bubbles as a proof that a reaction has occurred.

Have a nice day!

6 0

3 years ago

Read 2 more answers

List the sequence of events that occurred in the area represented by the profile above.

Fittoniya [83]

1. Igneous intrusion Y formed.

2. The shale layer was deposited.

3. Igneous intrusion X formed.

4. The limestone layer was deposited.

5. The mudstone layer was deposited.

B 1. The mudstone layer was deposited.

2. The limestone layer was deposited.

3. The shale layer was deposited.

4. Igneous intrusion Y was forced onto the mudstone, limestone, and shale.

5. Igneous intrusion X was forced onto the mudstone, limestone, and shale.

C 1. Igneous intrusion X formed.

2. Igneous intrusion Y formed.

3. The shale layer was deposited.

4. The limestone layer was deposited.

5. The mudstone layer was deposited.

D 1. The layer of mudstone was deposited.

2. The layer of limestone was deposited.

3. Igneous intrusion Y was forced onto the mudstone and limestone.

4. The shale layer was deposited.

5. Igneous intrusion X was forced over the mudstone, limestone, and shale

7 0

2 years ago

The force that holds paticles together in the atomic nuecleaus?

kherson [118]

Explanation:

i believe you meant particles*

7 0

2 years ago

At which temperature is water in its gas phase (water vapor)?

tankabanditka [31]

Answer: (Assuming we’re going by degrees Fahrenheit) I’d say 140.

Explanation: -40 would be beyond freezing point for water which is 32 degrees Fahrenheit and 40 would nearly be freezing point. For water to transform into its gas phase, the temperature would need to be greater. Therefore, 140 degrees Fahrenheit makes the most sense.

Although I did search it up and 212 degrees Fahrenheit (100 degrees Celsius) is the proven temperature at which water transforms into water vapor so... not sure if there’s more to the question or I’m interpreting the question wrong.

4 0

2 years ago

Why do you think the astronomical unit is not used to measure distances on earth?

DiKsa [7]

Answer:One Astronomical Unit is the distance between the Earth and the Sun, this acts as a sort of a cosmic metre stick. Astronomers don't and cannot measure distances. Distances are merely inferred from what actually has been measured, such as an angle, a relative luminosity, a time period

Explanation:

3 0

2 years ago

Read 2 more answers