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3 years ago

Can you help me plz

Chemistry

1 answer:

ira [324]3 years ago

3 0

Answer:

convection

Explanation:

convection is the movement of a fluid (in this case air) as it rises and lowers in temperature

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Which of these statements would be true if the water molecule was linear instead of bent? Check all that apply.

Katen [24]

If the water molecule was linear instead of bent the water would no longer produce hydrogen bonds.

<u>Explanation:</u>

Yes, If the water molecule was linear instead of bent the water would no longer produce hydrogen bonds.
The water would no longer generate hydrogen bonds.
It will lose its polar features and nearly all of its features will change such as boiling point, water tension and solubility.
It would be more like to gas, rather than liquid.
If the water was in the linear, the water would have all the features and it would produce the hydrogen bonds.

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3 years ago

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Gastric acid pH can range from 1 to 4, and most of the acid is HCl.

erma4kov [3.2K]

Given the molarity of the solution is $3.03*10^{-2}$ .

The volume of the solution is 10.9/1000 L

Number of moles of HCl = Molarity * volume of the solution in L

Number of moles of HCl = $3.03*10^{-2}$ * $\frac{1000}{10.9}$

Number of moles of HCl = 2.7 moles.

Therefore number of moles of HCl in 10.9 ml of the stomach acid is 2.7 moles

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3 years ago

An insulated piston-cylinder device contains 1 L of saturated liquid water at pressure of 150 kPa. An electric resistance heater

miskamm [114]

Answer:

Explanation:

In this problem,

we will determine the enthalpy at the end of heat input and we get the condition is the super heated state.

so the entropy change will be due to latent heat at 150 kPa and also due to temperature change at the super heated state.

All the temperature, enthalpy is evaluated with the help of the steam table.

mass is calculated with the help of a specific volume at initial condition.

<u>see image below</u>

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3 years ago

What scientist do that is the basis for their investigation

Tju [1.3M]

They come up with a hypothesis (question to investigate), then they work out what variables and what they will be measuring, keeping the same and changing in the experiment

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3 years ago

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How are proteins,carbohydrates,and fats related to the discipline of chemistry

dangina [55]

Answer:

proteins, carbohydrates, and fats chemically change into energy since they are created that way

May I have brainliest thanks

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3 years ago

Can you help me plz ​

Can you help me plz