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QR Challenge: Chapter 15 Classification of Matter

QuestionAnswer
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
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 fireworkschemical

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