Answer:
U --> Th + He
Explanation:
Alpha radiations are emitted as a result of radioactive decay. The atom emit the alpha particles consist of two proton and two neutrons. Which is also called helium nuclei. When atom undergoes the alpha emission the original atom convert into the atom having mass number less than 4 and atomic number less than 2 as compared to parent atom the starting atom.
Alpha radiations can travel in a short distance.
These radiations can not penetrate into the skin or clothes.
These radiations can be harmful for the human if these are inhaled.
These radiations can be stopped by a piece of paper.
₉₂U²³⁸ → ₉₀Th²³⁴ + ₂He⁴
Location = nucleus ,
and you can see the total charge on the number that written below the substance, which would be 28+
hope this helps
Answer:
C. Aqueous Solutions
General Formulas and Concepts:
<u>Aqueous Solutions</u>'
- Dissociation
- Solvents and Solutions
Explanation:
Water is the universal solution that solvents are dissolved in. Whenever anything is dissolved in water, it will be an aqueous solution.
Strong ionic solutions dissolve into their ions when dissolved in water.
Weak acids and bases don't fully dissociate in water.
Liquid 2 because the lower the density the more it floats and the higher the density the more it sinks. The order from top to bottom is liquid 2, liquid 3, liquid 1
