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Chem Test 1 Prep
Preparation for first Chemistry test
| Question | Answer |
|---|---|
| Which is an element, Cobalt or Carbon monoxide? | Cobalt |
| Is salt water a heterogeneous or homogeneous mixture? | Homogeneous |
| A metal can be bent into new shapes because it is what? | Malleable |
| What do we call it when we can pull a metal out to form wires? | Ductility |
| Baking powder contains three different chemicals plus corn starch. Is it a compound? | No, it is a mixture |
| Define density mathematically | Mass divided by volume |
| The melting point of water is the same as what? | The freezing point |
| I heat up sulfur and iron filings to form a compound, FeS. How can I use a magnet to separate the iron? | I can't, it is no longer a mixture, and FeS is not magnetic |
| If sugar dissolves in alcohol but salt does not, what lab equipment to I need to separate a mixture of sugar and salt? | A funnel and filter paper |
| Name two types of pure substances | Elements and compounds |
| You can smell bleach and gasoline because they are... | Volatile |
| Which is a compound, water or iron? | Water |
| Is sodium hydroxide, NaOH, a compound or a mixture? | Compound |
| Metals are shiny. This is called: | Luster |
| What does a mixture contain? | More than one substance |
| What is volume? | The amount of space something takes up. |
| Which changes on the moon? Mass, weight, volume or density? | Weight |
| Substances that are made up of only one type of atom are called what? | Elements |
| What do we call the smallest part of an element that still has the properties of the element? | Atoms |
| Which is a homogeneous mixture, soil or air? | Air |
| Which is an element, cobalt or carbon monixide? (Co or CO) | Cobalt, Co |
| If you can see the individual components of a mixture, you know it is: | Heterogeneous |
| IF a piece of wood sinks in water, what can you say about its density relative to the density of water? | The wood is denser. |