| Sections | |||
|---|---|---|---|
| Mixtures | 12 mins | 0 completed | Learn Summary |
| Scientific Notation | 6 mins | 0 completed | Learn |
| Accuracy & Precision | 5 mins | 0 completed | Learn |
| Standard Deviation, Mean, Median & Mode | 7 mins | 0 completed | Learn |
| Metric Prefixes | 17 mins | 0 completed | Learn Summary |
| Significant Figures | 18 mins | 0 completed | Learn Summary |
| Energy, Heat and Temperature | 7 mins | 0 completed | Learn Summary |
| Physical & Chemical Changes | 7 mins | 0 completed | Learn Summary |
| Dimensional Analysis | 28 mins | 0 completed | Learn |
| Density | 14 mins | 0 completed | Learn Summary |
| End of Chapter 1 Problems | 51 mins | 0 completed | Learn |
| Additional Practice |
|---|
| The Scientific Method |
| Filtration |
| Physical & Chemical Properties |
| Types of Energy |
Consider the following substance
I. saline IV solution
II. salt (NaCl)
III. aluminum foil
IV. salad dressing
Which of the following is true?
A) I and III are pure substances, IV is a homogeneous mixture.
B) I and II are homogeneous mixtures
C) Both II and III are pure substances, I is a homogeneous mixture
D) None of the above is true
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