b. Cl2 C. 2.

Determine if the following mixtures are homogeneous or heterogeneous. Explain why they are homogeneous/heterogeneous. a. Iodized salt  b. Brown sugar  c. Soft drinks

17 What is the dollar value of a cube of gold measuring 2.00 inches on a side? Price of gold: $1366 per troy ounce Density of gold: 19.3 g/cm 31.1 g = 1 troy ounce 2.54 cm = 1 inch A. $1.11 x 10S B. $2.41 x 107 C. $2.98 x 104 D. $1.07 x 10% E. $5.96 x 106

if you put salt water in an open container under the sun, the water evaporates leaving the salt behind. the process is called____. sometimes, it is called crystallization because the solid salt will form crystals as water evaporates. A. Decantation B. Filtration C. Evaporation D. Distillation

2. Fill the blanks with the possible physical methods of separation/processes. Matter Heterogeneous Physical Methods Homogeneous mixture mixture а. b. С.

26 1 3. 12M.+ On → le+ 27 12M9 26 11NA 27 iiNa 11N. 27 13AL

Chemistry Question

g shape, color, Choose all that apply. A. The property can be observed without changing the identity of the substanca B. The property depends on the amount of the substance present. C. The state of the substance changes when you measure the property. D. The property can be observed or measured. EVIDENCE NOTEBOOK 19. How do the physical properties of the rocks at the beginning of the lesson differ? Are there physical properties that might differ, but that you cannot observe in the photos? Record your evidence. Lesson 1 The Properties

a. b. こ。 HS HS С. OH он OH он

Choices.. 1. A. 12.2 C B. 1.31 C C. 78.7 C D. 0.0219 C 2. A. 2.27x10-7 e B. 8.16x10-4 e C. 1.26x10-4 e D. 1.36x10-5 e 3. A. 0.161 g B. 8.93×10-4 C. 0.0536 g D. 1.49x10-5