Answer:
D 1.0 g of powdered Zn(s) in 50. mL of 1.0 M HCl(aq) at 30.°C
Explanation:
There are several factors affecting and controlling the rate of chemical reactions.
Some of which are applicable in resolving this problem is the nature of the reactants and their concentration. Also, the temperature of the reaction is also very important.
- Reactants that powdered ensures a faster rate because, more surface area is exposed for the reaction.
- Also, the higher the temperature, the faster the reaction will take place.
- So, the powdered zinc and the higher temperature reaction will facilitate a better rate of reaction.
Answer:
Sodium Sulfate: Dissociate
Ammonium Phosphate: Dissociate
Sulfuric Acid: Ionize
Potassium Iodide: Dissociate
Perchloric Acid: Ionize
Cesium Chloride: Dissociate
Nitric Acid: Ionize
Answer:
X = ²³⁵₉₂U
Explanation:
Nuclear equation:
²³⁹₉₄Pu → ²³⁵₉₂U + ⁴₂He
The isotope of plutonium-239 undergo alpha decay and produced uranium-235.
Alpha decay:
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.
Properties of alpha radiation:
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