When aluminum (Al) reacts with chlorine gas (Cl2), aluminum chloride (AlCl3) is produced according to the balanced equation below:2Al + 3Cl2 −> 2AlCl3
a. Chlorine is limiting, 5 more molecules are needed.
b. Chlorine is limiting, 15 more molecules are needed
c. Aluminum is limiting, 10 more atoms are needed
d. Aluminum is limiting, 25 more atoms are needed

answer is a

explanation:

answer : a model is often used to explain and make things easier to understand when any scientific topic needs to be demonstrated and explained.

as in this case where a scientist wants to use a model to present the results of his detailed scientific investigation. he should do it as it will him to make the audience understand the concept in a much better way. also, it can be changed according to new scientific understandings.

answersilicon (si); oxygen (o);

the pseudoscience are like beliefs, theories, or like practices that are considered scientific