Using boyles law
p1v1=p2v2
v1=3.88
v2=5.43
p1=707
p2=?
707x3.88=p2x5.43
2743.16/5.43=p2
p2=505mmHg
Answer:0.286M
Explanation:
10.7g / 149.89g/mol×0.25L
The reaction is given by
Barium goes underneath beta decay to form Ceaseum
- Cs is very mellable element
- It can melt on your hand
The answer is 40.
We can solve this by finding out the number of protons, and neutrons. Atomic number of an element means the number of protons in that element. So, the atom has 30 protons if the atomic number is 30.
On the other hand, mass number is the total number of protons and neutrons, but not electrons, because they're too light comparing to the other 2. Therefore, we can simply solve the number of neutrons in the atom by subtracting the number of protons from the mass number. 70 - 30 = 40.
Therfore, the number of neutrons is 40.
8miles in 2 hours. Let's find how many she did on average in one hour.
8/2 = 4miles per hour.
