Thomas discovered cathode rays when he was working with electrons. He was performing experiments with electrons when one of them became electrically charged and a beam of light came from it, this creating a cathode ray.
Answer:
Total pressure in flask is 2.37 atm.
Explanation:
According to the Dalton's law of partial pressure, the total pressure of the flask would be the sum of partial pressure of the gases present in mixture.
P(total) = P1+ P2+P3+...Pn
n= number of gases present
Given data:
Pressure of argon gas = 0.72 atm
Pressure of oxygen gas = 1.65 atm
Total pressure in flask = ?
Solution:
P(total) = P (argon) + P (oxygen)
P(total) = 0.72 + 1.65
P(total) = 2.37 atm
protons with a positive charge and neutrons with a neutral charge
Answer:
B. Nuclear fission
Explanation:
Nuclear binding energy is used to determine whether fission or fusion will be a favorable process. The mass defect of a nucleus represents the mass of the energy binding the nucleus, and is the difference between the mass of a nucleus and the sum of the masses of the nucleons of which it is composed.
Answer:
Explanation:
1 mol of nitrogen at STP = 22.4 L = 22400 cc
n = Mol of 
= 
M = Molar mass of = 
= Avogadro's number = 
Mass of is
Mass of the nitrogen is
Number of molecules is given by
The number of molecules present in it are
