1: TRUE or FALSE? Elements are pure types of matter.

2: TRUE or FALSE? Atoms are made from molecules.
3: TRUE or FALSE? Chlorophyll is needed for cellular respiration.
4: TRUE or FALSE? Matter and energy flow through food chains.
5: TRUE or FALSE? Chemical compounds contain at least two types of atoms.
PLEASE HELP!!
Thank You......

"Atoms make up molecules."

So how could number 2 be true?

1: FALSE. Elements are not pure types of matter, but rather the simplest form of matter made up of only one type of atom. Elements cannot be broken down into simpler substances by chemical means.

To determine the answer, you can recall the definition and characteristics of elements, which can be found in any introductory chemistry textbook or a reliable online resource. You can also remember that elements are represented on the periodic table, such as hydrogen (H) or oxygen (O), which consists of one type of atom.

2: FALSE. Atoms are not made from molecules. In fact, it is the other way around. Molecules are made up of atoms bonded together.

To find the answer, you can refer to basic knowledge of chemistry or recall that molecules are formed by the chemical combination of two or more atoms. For example, water (H2O) is a molecule made up of two hydrogen atoms and one oxygen atom.

3: FALSE. Chlorophyll is not needed for cellular respiration, but rather for photosynthesis. During photosynthesis, chlorophyll captures light energy and helps convert it into chemical energy in plants.

To determine the accuracy, you can remember that cellular respiration is the process by which cells break down glucose and convert it into ATP (adenosine triphosphate) to release energy. While chlorophyll is involved in the process of photosynthesis, it is not directly necessary for cellular respiration.

4: TRUE. Matter and energy do indeed flow through food chains. Energy flows through the food chain from one organism to another as energy is transferred and ultimately used by organisms for metabolism. Matter, in the form of nutrients, is also transferred as one organism consumes another.

To confirm the statement, you can recall the basic principles of ecology. Food chains illustrate the flow of energy and matter through different trophic levels, starting from producers (plants) and ending with decomposers (organisms that break down organic matter into simpler substances).

5: TRUE. Chemical compounds do contain at least two types of atoms. A compound is formed when different elements chemically combine in a fixed ratio, resulting in a substance with unique properties.

To determine the truthfulness of the statement, you can rely on your knowledge of basic chemistry or recall that a compound is made up of two or more elements held together by chemical bonds. For example, water (H2O) is a compound consisting of hydrogen and oxygen atoms bonded together.

true

Help how? Atoms make up molecules. Elements are pure matter. What don't you understand that keeps you from answering the others.

So that means true for numbers 1 and 2.

False for 3 and 4.
true for 5.
are my answers correct?
Please help.
Thank you.