When a radioactive isotope releases an alpha particle, the atomic number of the atom is decreased by four.
So, the correct answer is B.
Hope this helps,
Davinia.
Answer:
11.3 g.
Explanation:
Hello there!
In this case, since the combustion of butane is:

Thus, since there is a 1:5 mole ratio between butane and water, we obtain the following mass of water:

Therefore, the resulting mass of water is:

Best regards!
sunlimation is when a solid goes to a gas thats all i can awnser i havent got that far in chemistry yet.
D
because they are elements in the same group as strontium
<h3>
Answer:</h3>
500 Joules
<h3>
Explanation:</h3>
<u>We are given;</u>
- Force is 100 N
- Distance is 5 m
We are required to calculate the work done;
- Work done is the product of force and distance.
- That is, work done = Force × distance
- Work is measured in Joules
Thus, in this case;
Work done = 100 N × 5 m
= 500 Joules
Thus, the work done in moving the box is 500 joules