University:
San Jose State University
Course:
CHEM 10 | Chemical Calculations and Concepts
Academic year:

2022
Views:

134

Pages:

2
Author:

Luciano Kirby

PAL—Atomic Theory and Classifying Matter Part I– Atomic Theory 1. Which statements are consistent with Dalton’s atomic theory as it was originally stated? Explain why the inconsistent statements are wrong. a. All titanium atoms are identical. b. Calcium and magnesium atoms have the same mass. c. Potassium and bromine atoms combine in a 1:1 ratio to form potassium bromide. d. Neon and Hydrogen are the same. 2. Below are three boxes labeled solid, liquid, and gas. Fill in those boxes with circles which represent atoms, to show the arrangement of atoms in those states. 3. Label the diagram below. 1 Part II– Classifying Matter 4. Fill in the blanks of the chart below. Provide an example beside each category. 5. For part a, the correct atomic number for each given element. For part b, provide the correct element for the given atomic number. 6. Classify each example as a pure substance or a mixture. If it is a pure substance, classify it as an element or a compound. If it is a mixture, classify it as homogenous or heterogenous. a. Dry Ice b. Soil with rocks in it c. A piece of chocolate d. Table salt e. Carbonated water f. Helium in a balloon g. A diamond h. Italian salad dressing 2