Answer:
Add more pieces of zinc (2n) to the mixture
Heat the hydrochloric acid (HC) solution.
Explanation:
The reaction rate is simply the speed of the reaction. It is usually monitored by the rate at which the concentration of either of the reactants or products are changing per unit of time.
The factors affecting the rate of reactions are:
- Nature of the reactants
- Concentration or pressure of gases
- Temperature of the reaction
- Availability of catalysts
- Sunlight
In this problem, if the concentration of the zinc increases, the rate of reaction will increase.
If the temperature of HCl increases, so also the rate of the reaction.
Answer:
A dilute acid is when the concentration of water mixed in the acid is <em>higher</em> than the concentration of the acid itself. For example, 5% sulfuric acid is a dilute acid.
A concentrated acid is an acid that is in either <em>pure </em>form or has a <em>high </em>concentration.
Hope this helps! :)
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Answer: It increases the entropy
Explanation:
Entropy is the measure of degree of randomness or disorder.
Activation energy is the extra energy that must be supplied to reactants in order to cross the energy barrier and thus convert to products.
A catalyst is a substance which increases the rate of a reaction by taking the reaction through a different path which involves lower activation energy and thus more molecules can cross the energy barrier and more molecules convert to products. Thus leading to more randomness and more entropy.
Explanation:
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Answer:
B
HVL is that amount of material that will reduce the original intensity to half of its value. One HVL will reduce the 100 R/minute to 50 R/minute, a second HVL will reduce the 50 R/minute to 25 R/minute
Explanation:
