Presentation on theme: "Mrs. Mack 8th Grade Science A:B: During a physical change During a chemical change A new substance is formed ___________ C:D: In a mixtureIn an element."— Presentation transcript:
A:B: Sour taste, pH 0-6.9, feels slippery, turns red litmus paper blue Sour taste, pH 7.0, reacts with metals, turns blue litmus paper red What are the properties of an acid? C:D: Bitter taste, pH 0-6.9, reacts with metals, turns red litmus paper blue Sour taste, pH 0-6.9, reacts with metals, turns blue litmus paper red
Sour taste, 0-6.9, reacts with metals, turns blue litmus paper red D
A:B: evaporationdistillation When left in the open air, liquid solutions can change to gas, leaving solid components behind. What method of separating mixtures is this? C:D: Magnetic attractionfiltration
A:B: The chemical reaction created matter The chemical reaction destroyed matter A piece of paper was burned and became a pile of ashes. The mass of the ashes was less than the mass of the paper before it was burned. What can you conclude based on the law of conservation of mass? C:D: The chemical reaction took place in an open system The reaction did not work as expected because it took place in a closed system.
The chemical reaction took place in an open system C
A:B: Homogeneous mixturePure substance What is a mixture that is so evenly mixed that you can’t differentiate the parts simply by looking at it? C:D: Heterogeneous mixture Pure mixture
A:B: It increases steadilyIt decreases steadily How does the maximum amount of salt that will dissolve in a given amount of water change if the temperature of the water is increased? C:D: It remains the same It increases then decreases