Question | Answer |
What states that the mass of all substances before a chemical change equals the mass of all substances after the change? | The Law of Conservation of Mass
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How can homogeneous mixtures be separated? | physical changes
| What are soil, a salad, and sugar water examples? | mixtures
| What are the final properties when sugar and sand are mixed together? | same as the beginning substances
| What is anything that has mass and takes up space? | matter
| How is matter classified? | substances or mixtures
| What is a pond an example of? | Suspension
| What type of change is burning paper? | chemical
| What are the particles that make up all matter? | atoms
| What type of change is baking cookies? | chemical
| What type of change is filtering? | physical
| How can dissolved substances be separated? | distillation
| What type of property is odor? | physical
| What type of property is resistance of a diamond to corrosion? | chemical
| What are H2O, CO2, and C12H22O11 example of? | chemical formulas
| What would smoke be considered as? | colloid
| How do liquid water, ice, and water vapor differ from each other? | They are different states of matter.
| What are colloids? | mixtures
| What can scatter light? | colloids and solutions
| What type of property is the color of ink? | physical
| What type of mixture is a suspension? | heterogeneous
| What is scattering of light by colloids? | the Tyndall effect
| What is the result of two or more substances are combined so that each substance maintains its own properties? | mixture
| What occurs when a gasoline is burned in an engine? | a new substance is formed
| What is another name for a homogeneous mixture? | solution
| Iron and oxygen form rust. Compare the mass of iron and oxygen before the reaction with the mass of rust resulting from the reaction. | The mass of the substances reacting is equal to the mass of the substances resulting from the chemical reaction.
| What type of mixture is a fruit salad? | homogeneous
| What can be separated into simpler parts through differences in physical properties? | mixture
| What are substances considered to be? | elements or compounds
| What type of change is exploding of fireworks | chemical |