Question

elements, compounds, mixtures color by numbers
directions: answer each question by choosing the correct choice. after you have completed all the questions color the picture using the assigned colors
question\tchoice a\tchoice b\tchoice c

1. what is the smallest unit of an element that still has the properties of the original element?\tmixture (red orange)\tmolecule (yellow)\tatom (purple)
2. what is the smallest unit of a substance that still has the properties of that substance?\tmixture (red)\tmolecule (yellow)\tatom (pink)
3. two or more different atoms chemically bonded together\tmixture (purple)\tcompound (aqua green)\tmolecule (green)
4. two or more of the same or different atoms chemically bonded together\tmolecule (sky blue)\tcompound (blue)\tmixture (red)
5. two or more substances that are not chemically combined.\tmolecule (pink)\tcompound (yellow green)\tmixture (green)
6. the elements of a(n) ____ can only be separated by a chemical change.\tmolecule (orange)\tmixture (pink)\tatom (red)
7. the components of a ____ can be separated by physical means.\tcompound (yellow)\tmolecule (green)\tmixture (pink)
8. elements are represented by chemical symbol. symbols are written with\tall lowercase letters (green)\tall capital letters (yellow)\tat least one capital letter (red orange)
9. c₆h₁₂o₆ is a(n) ____\telement (yellow)\tcompound (yellow green)\tmixture (magenta)
10. chicken noodle soup is a(n) ____\telement (sky blue)\tcompound (light green)\tmixture (magenta)
11. copper (cu) is a(n) ____\telement (red)\tcompound (blue)\tmixture (pink)
12. carbon (c) and hydrogen (h) are pure substances. each is made of only one type of atom, but carbon atoms are different from hydrogen atoms. carbon and hydrogen chemically combine to form methane (ch₄).\tmethane is an element and carbon and hydrogen are compounds. (yellow)\tcarbon and hydrogen are elements and methane is a compound. (blue)\tcarbon, hydrogen, and methane are all compounds. (pink)

Explanation:

1. The smallest unit of an element with its properties is an atom.
2. The smallest unit of a substance with its properties is a molecule.
3. Different atoms chemically bonded form a compound.
4. Atoms bonded (same or different) form a molecule.
5. Substances not chemically combined form a mixture.
6. Elements in a compound need chemical change to separate.
7. Components of a mixture can be separated physically.
8. Element symbols have at least one capital letter.
9. $C_6H_{12}O_6$ is a compound as it has multiple elements chemically bonded.
10. Chicken noodle soup is a mixture as substances aren't chemically combined.
11. Copper (Cu) is an element as it's a pure substance with one - type of atom.
12. Carbon and hydrogen are elements, and they form methane ($CH_4$) which is a compound.

Answer:

1. C. atom (purple)
2. B. molecule (yellow)
3. B. compound (aqua green)
4. A. molecule (sky blue)
5. C. mixture (green)
6. A. molecule (orange)
7. C. mixture (pink)
8. C. at least one capital letter (red orange)
9. B. compound (yellow green)
10. C. mixture (magenta)
11. A. element (red)
12. B. carbon and hydrogen are elements and methane is a compound (blue)