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Nataly_w [17]
3 years ago
10

A sequence of thermonuclear fusion processes inside massive stars can continue to transform the nuclei of elements such as carbo

n, oxygen, and so forth, into heavier nuclei AND also generate excess energy, up to a limit beyond which no further energy-producing reactions can occur. The element that is produced when this limit is reached is?
Chemistry
1 answer:
nlexa [21]3 years ago
5 0

Answer:

Iron is the element that is produced at the limit of the reaction.

Explanation:

In nuclear fusion 2 lighter nuclei are combined together into a single nucleus releasing a tremendous amount of energy in the process.

Up to fusion of iron the reaction of fusion is exothermic but when iron atom pops out the reaction becomes endothermic and it requires very high amount of energy to fuse iron atoms which is not available thus marking an end to the fusion reaction.

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If 00810 mol neon gas at the particular temperature and pressure occupies a volume of 214 mL ehat volume would 0.00684 mol neon
Grace [21]

Answer:

V_2=181mL

Explanation:

Hello,

In this case, Avogadro's relationship allows us to relate the moles and the volume of a gas at an initial condition and an a final one as shown below:

\frac{n_1}{V_1}=\frac{n_2}{V_2}

Thus, the volume that 0.00684 mol of neon the same pressure and temperature is computed below as required:

V_2=\frac{V_1*n_2}{n_1}=\frac{214mL*0.00684mol}{0.00810mol}  \\\\V_2=181mL

Best regards.

6 0
3 years ago
Name two objects which are colourless liquid​
mina [271]

Answer:

water and asid sulfuric

4 0
3 years ago
Read 2 more answers
A compound is analyzed and found to contain 22.10%Al, 25.40%P, and 52.50%O. What is the empirical formula of the compound?
Whitepunk [10]

Let the total mass of compound is 100g

The mass of each element will be

Al = 22.10 g

P = 25.40 g

O = 52.50 g

In order to determine the molecular formula we will calculate the molar ratio of the given elements

Atomic weight of Al : 27 g/ mol

Atomic weight of P : 3 1g /mol

Atomic weight of O : 16 g /mol

Moles of Al = mass / atomic mass = 22.10 / 27 = 0.819

Moles of P = mass / atomic mass = 25.40/ 31 = 0.819

Moles of O = mass / atomic mass = 52.50/ 16 = 3.28

Now we will divide the moles of each element with the lowest moles obtained to obtain a whole number ratio of moles of each element present

moles of Al = 0.819 / 0.819 = 1

moles of P = 0.819 / 0.819 = 1

moles of O = 3.28 / 0.819 =  4

So the empirical formula will be  : AlPO4

8 0
3 years ago
How many feet will you travel in 1.5 hours if you drive at a speed of 156 mph
NeX [460]

Explanation:

234 mile is the answer.

7 0
3 years ago
Christy is a forensic scientist. She is given a white powder and asked to determine whether it’s sugar. She analyzes the white p
leva [86]

Answer:

A. is not

B.  incorrect

C. identify substances that have the measured molecular mass

Explanation:

Since in the question it is mentioned that the Christy who is a forensic scientist and she gave a white powder and identify whether it is a sugar or not when she tested she seen that the molecular mass is different as compared with the sugar

So here it can be concluded that the white powder does not show a sugar that means it is not a sugar so automatically the hypothesis of Christy is wrong. And, the next step is to track the substance that shows the molecular mass i.e. measured

6 0
3 years ago
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