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3 years ago

What is the flexible connective tissue shown in blus?

Chemistry

2 answers:

Sliva [168]3 years ago

5 0

Answer:

cartilage

Explanation:

satela [25.4K]3 years ago

3 0

Have to b O muscle cartilage

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The reaction of hydrogen(g) with fluorine(g) to form hydrogen fluoride(g) proceeds as follows: H2(g) + F2(g) 2 HF(g) When 0.647

Nata [24]

Answer: The value of $\Delta H$ for the reaction will be -537 kJ

Explanation:

To calculate the number of moles, we use the equation:

$\text{Number of moles}=\frac{\text{Given mass}}{\text{Molar mass}}$

Given mass of hydrogen gas = 0.647 g

Molar mass of hydrogen gas = 2 g/mol

Putting values in above equation, we get:

$\text{Moles of hydrogen gas}=\frac{0.647g}{2g/mol}=0.324mol$

We are given:

Energy released for 0.324 moles of hydrogen reacted is 174 kJ

For the given chemical reaction:

$H_2(g)+F_2(g)\rightarrow 2HF(g)$

By Stoichiometry of the reaction:

When 0.324 moles of hydrogen gas is reacted, the energy evolved is 174 kJ

So, when 1 mole of hydrogen gas will react, the energy evolved will be = $\frac{174kJ}{0.324mol}\times 1mol=537kJ$

Sign convention of heat:

When heat is absorbed, the sign of heat is taken to be positive and when heat is released, the sign of heat is taken to be negative.

Hence, the value of $\Delta H$ for the reaction will be -537 kJ

6 0

3 years ago

Which may be true for a substance that absorbs energy?

irinina [24]

It has different moleculs sorry I am guessing

8 0

3 years ago

A target is shielded from a radioactive sample by a sheet of metal. What kind of radiation can pass through the sheet of metal a

weeeeeb [17]

A. o. I know gamma can I Hope this helps

A now i remember yeah gamma only

4 0

3 years ago

Read 2 more answers

An example of gaining potential energy

aleksandr82 [10.1K]

Answer:

An example for gaining potential energy would be: A glass bottle on the top of a high shelf would have more high potential energy than a glass bottle on the middle or bottom shelf because it has a long way or more farther to fall down or brake.

Explanation:

Remember Potential Energy is the restored energy of an object has.

I hope this helps you!

5 0

3 years ago

Is classified as a substance A. Elements and compound B.mixtures

Vika [28.1K]

Pretty sure it’s Mixture if I’m not wrong

8 0

3 years ago