That is a chemical change.. Hope I helped!
<u>Answer:</u> The correct answer is Option 3.
<u>Explanation:</u>
All the radioisotope decay processes follow first order kinetics.
Rate law expression for first order kinetics is given by the equation:

where,
k = rate constant = ?
t = time taken for decay process = 8.32 seconds
a = initial amount of the reactant = 80 mg
a - x = amount left after decay process = 20 mg
Putting values in above equation, we get:

The equation used to calculate half life for first order kinetics:

where,
= half life of the reaction = ?
k = 
Putting values in above equation, we get:

Hence, the correct answer is Option 3.
Answer:
The correct option is;
a) As a juvenile
Explanation:
An high school student who is charged with drunk driving will be tried as a juvenile in the juvenile court and are likely to receive more penalties than normally prescribed for a defendant charged with driving under the influence.
The penalties that could be faced includes
1) Having to spend time in a juvenile detention center
2) Be put on probation
3) Recommendation for drug and alcohol counseling
4) Driving license suspension for a duration from 90 days to up to 2 years
5) Having driving under the influence intervention program.
The following illness you may have are vomitting, fever and diarrhea. Sick food workers may have germs that can make customers sick. If a food worker is sick with diarrhea or vomiting she/he should stay at home because it might contaminate the food and spread germs.
Answer:Chemistry Partial ... The presence of more oxygen molecules.
Explanation:
When you heat up a gas, the molecules that the gas is made up of move faster. ... This causes the molecules in the air in the tank to move faster. Unlike the balloon which would expand, the tank is a rigid container that will not expand. This increase in motion then raises the pressure inside the tank.