Question

chemistry of life homework 1
started: sep 10 at 5:23am
quiz instructions
these questions are to help you practice concepts from this week’s module on atoms and chemistry. as always, please come by office hours if you would like more help or extra explanation!
understanding the basics from this week will make upcoming modules fully understandable. biology is a special case of chemistry, and all molecular interactions observed in cells can be explained by basic principles of chemistry.
you will have 2 attempts and the highest score will be kept.

question 1
0.5 pts
true or false: matter is anything that takes up space and has mass and is composed of elements.
○ true
○ false

question 2
1 pts
true or false: elements are fundamental units composed of a single type of atom and cannot be further broken down by chemical reactions.

Explanation:

Question 1

Matter is defined as anything that occupies space and has mass. All matter is composed of elements (substances that cannot be broken down into simpler substances by chemical means). So the statement is True.

An element is a pure substance made up of only one type of atom. By definition, elements cannot be broken down into simpler substances through chemical reactions (nuclear reactions can break them down, but that's outside chemical reactions). So the statement is True.

Answer:

True

Question 2