Answer:
5:22 am
Explanation:
The gas X decays following a first-order reaction.
The half-life () is 25 min. We can find the rate constant (k) using the following expression.
We can find the concentration of X at a certain time () using the following expression.
where,
: initial concentration of X
t: time elapsed
The earliest time Professor Utonium can come back to do experiments in the lab is:
4:00 + 82 = 5:22 am
Answer:
The correct answer is c. adding a catalyst for the reaction
Explanation:
The function of a catalyst in a chemical reactionis to increase the rate of reaction by decreasing the required activation energy which is clearly illustrated on energy diagrams. It is not consumed in the reaction and can be reused repeatedly,as such, only small quantities of catalysts are required in the reaction. Catalyst provide a separate route for a chemical reaction to proceed at a lower activation energy than an uncatalysed reaction
The process of speeding up a chemicals reaction by the addition of a catalyst is known as catalysis
Krista was most likely try to see how the amount of time she took to study reflected in her quizzes. She would most likely have higher scores if she studied longer. There is no information given on how her math scores are or how long she studies math so I can’t answer the third question. There’s no best way to study; everyone is different. Some rewrite notes and others make flash cards. You may like to be quizzed by someone. It just depends what works best for you.
Caused by the earths tilt
Hello there.
An atom that has the same amount of atoms of each element on both sides of the reaction obeys what law
<span>law of conservation of mass</span>