Question

name: elements, compounds, mixtures color by numbers directions: answer each question by circling the correct choice. after you have completed all the questions color the picture using the assigned colors. question 1. what is the smallest unit of an element that still has the properties of the original element? question 2. what is the smallest unit of a substance that still has all the properties of that substance? question 3. two or more different atoms chemically bonded together question 4. two or more of the same or different atoms chemically bonded together question 5. two or more substances that are not chemically combined. question 6. the elements of a(n) __ can only be separated by a chemical change. question 7. the components of a can be separated by physical means. question 8. elements are represented by chemical symbol. symbols are written with question 9. c₆h₁₂o₆ is a(n) question 10. chicken noodle soup is a(n) question 11. copper (cu) is a(n) __ question 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).

Explanation:

1. The smallest unit of an element that still has the properties of the original element is an atom.
2. The smallest unit of a substance that still has the properties of that substance is a molecule for molecular - substances and an atom for elements.
3. Two or more different atoms chemically bonded together form a compound.
4. Two or more of the same or different atoms chemically bonded together form a molecule.
5. Two or more substances that are not chemically combined form a mixture.
6. The elements of a compound can only be separated by a chemical change.
7. The components of a mixture can be separated by physical means.
8. Element symbols are written with at least one capital letter.
9. $C_6H_{12}O_6$ is a compound as it is made up of different elements chemically bonded.
10. Chicken noodle soup is a mixture as it contains multiple substances not chemically combined.
11. Copper (Cu) is an element as it is a pure substance made of only one type of atom.
12. Carbon and hydrogen are elements and methane ($CH_4$) is a compound formed by their chemical combination.

Answer:

1. C. atom (purple)
2. B. molecule (yellow)
3. B. compound (blue)
4. A. molecule (pink)
5. B. mixture (pink)
6. A. compound (yellow)
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)