| A | B |
|---|
| Name 3 examples of a mixture. | salad, chex mix, mixed nuts, granola, trail mix |
| Name 3 example of a solution. | lemonade, hot chocolate, tea |
| Describe the properties of a highly concentrated pitcher of kool-aid. | darker in color and sweeter in taste |
| Describe the properties of a very diluted pitcher of kool-aid. | lighter in color and watery in taste |
| Which allows a solute to be more soluble- hot or cold water? Why? | Hot water; it helps water to act like a sponge and absorb more solute. |
| What is more soluble - citric acid or epsom salt? why? | Citric acid; b/c smaller crystals, more can dissolve |
| How do you supersaturate a solution? | 1. Water heated to very high temps 2. Add solute and stir until solution is saturated 3. Evaporate liquid to form crystals |
| If you were asked to separate a dry mixture of salt, gravel, and powder, what would you do? | Screening, Coffee filtering, Evaporation |
| What is the difference between a saturated solution and a concentrated solution? | saturated solution- no more solute can be dissolved Concentration- the amount of solute present in the solution |
| During a chemical reaction, if a solution fizzes, you can tell that a ________________ was formed. | gas |
| Name an example of fast chemical reaction. | citric acid, baking soda, and water |
| What is calcium carbonate? | chalk |
| How do you know if a chemical reaction took place? (What are 2 possible products of a chemical reaction?) | * Precipitate forms such as chalk * Chemical reaction produces a gas |
| If you made a pitcher of instant iced tea, and noticed the solution was saturated because there was instant iced tea mix sitting on the bottom, what is one way you could dissolve the solute? | add more solvent, water |
| Is a solution a mixture? How do you know? | Yes because a mixture is 2 or more materials combined. |
| How do you know if a solution is saturated? Explain. | There will left over solute at the bottom |
| If you saturated a pitcher of iced tea with 65 grams of sugar in regular temperature water, would it still be saturated if you heated the water? Explain. | No, it could hold more solute because of its warmer temperature |
| What method would you use to separate solutions? | Evaporation |
| What 2 methods could you use to separate mixtures? | 1. screen 2. filter paper |
| What are 2 scientific names for water? | 1. H20 2. Universal solvent |
| What is formed after a solution is evaporated? | crystals |
| What is a reactant? Name 2 examples of reactants (from our experiment). | Examples: citric acid and baking soda |
| How would you make a solution more concentrated? | Add more solute |
| How would you dilute a solution? | Add more water/solvent |
