Yes a physical change can do that. A chemical change is like a burning candal
<span>Moles = weight in g / atomic weight So, moles in 40 g of He = 40 / 4 = 10 moles.</span>
Answer:
<h3>The answer is 400 mL</h3>
Explanation:
The new volume can be found by using the formula for Boyle's law which is
![P_1V_1 = P_2V_2](https://tex.z-dn.net/?f=P_1V_1%20%3D%20P_2V_2)
where
P1 is the initial pressure
P2 is the final pressure
V1 is the initial volume
V2 is the final volume
Since we are finding the new volume
![V_2 = \frac{P_1V_1}{P_2} \\](https://tex.z-dn.net/?f=V_2%20%3D%20%20%5Cfrac%7BP_1V_1%7D%7BP_2%7D%20%20%5C%5C)
So we have
![V_2 = \frac{500000 \times 200}{250000} = \frac{100000000}{250000} = \frac{10000}{25} \\](https://tex.z-dn.net/?f=V_2%20%3D%20%20%5Cfrac%7B500000%20%5Ctimes%20200%7D%7B250000%7D%20%20%3D%20%20%5Cfrac%7B100000000%7D%7B250000%7D%20%20%3D%20%20%5Cfrac%7B10000%7D%7B25%7D%20%20%5C%5C%20)
We have the final answer as
<h3>400 mL</h3>
Hope this helps you
Answer:
Based on my EXPLAIN i think the answer is C.
Explanation: A chemical reaction is a process that leads to the chemical transformation of one set of chemical substances to another. Classically, chemical reactions encompass changes that only involve the positions of electrons in the forming and breaking of chemical bonds between atoms, with no change to the nuclei (no change to the elements present), and can often be described by a chemical equation. Nuclear chemistry is a sub-discipline of chemistry that involves the chemical reactions of unstable and radioactive elements where both electronic and nuclear changes can occur.
<em>here is the structure given below ,,, you can easily understand the structure:</em>