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Name two reactions that occur in your home that use chemical reactions to produce energy.
Lesson 8 from the course show a video of Kati's story and her addition to Fentanyl. How many times did Kati say she overdosed (OD) in the video, and what drug did the video say needs to be used immediately after an overdose?
Water has a very high boiling point because it _____
A student was observing properties of four substances and recorded his results. Which of the following substances appears to have a property that does not fit with the rest? Answer with the letter of the substance only.
| Substance | Appearance at Room Temperature | Melting Point (°C) | Conductivity When Melted |
|---|---|---|---|
| A | soft and waxy | 90 | no |
| B | liquid | 10 | yes |
| C | red crystals | 400 | yes |
| D | white powder | 750 | yes |
You are given the following formula and partial name, where “X” is an unknown element.XCl2 _____ chlorideWhich of the following statements could be true?