B. Argon's vibrational energy is not excited by infrared radiation.
Explanation:
The property of carbon dioxide to get excited by infrared electromagnetic radiation is what qualifies it as a greenhouse gas. When infrared from the earth's surface is reflecting back to space, some of the radiation is absorbed and remitted by the carbon-dioxide molecules in the atmosphere. This causes a phenomenon called greenhouse effect that causes the atmosphere to be relatively warmer. The more the carbon dioxide molecules the more the greenhouse effect.
Answer:
chemical change because a different solid substance is formed.
A useful dilution relationship is (M1V1)=(M2V2) where M is molarity and V is volume in liters.
(6.00M x V1) = (2.00M x .500L) (I assume you mean 2.0M)
V1= (2.00M x .500L)/6.00M
V1= 0.167L
Answer : The correct option is, (A) Aluminum foil
Explanation :
Penetration power : It is the movement of particles or the ray through an object. As we know that the more the energy of a particle, the more will be the penetrating power.
The ascending order of the penetration power of alpha rays, beta rays, and gamma rays are:
Alpha rays < Beta rays < Gamma rays
The penetrating power of the alpha, beta and gamma rays varies greatly. That means,
- The alpha particles are restricted by paper.
- The beta particles can pass through the paper but it can not pass through the aluminum foil.
- The restriction of gamma rays is very difficult. It can be restrict or blocked only by concrete, lead, or other heavy shielding.
Hence, Aluminium foil will stop beta particles.