Gluesticks

10 pts!!! EASY CHEMISTRY!!! read!!?

10 pts!! easy!!! _____1. A good definition of a chemical is any substance that Causes corrosion Has definite composition Is hazardous Is used in industrial processes _____2. Matter that is free to move and fills its available volume is in the _____state. Liquid Solid Gaseous Elemental _____3. The state of matter in which a material is most likely to resist compression is the Solid state Liquid state Gaseous state Vaporous state _____4. A chemical change occurs when Dissolved minerals solidify to form a crystal Ethanol is purified through distillation Salt deposits form from evaporated seawater A leaf changes color _____5. Which of the following shows a physical change occurring? A peach spoils A copper bowl tarnishes A piece of jewelry turns your skin green A hot-glue gun melts a glue stick _____6. Mercury (II) oxide decomposes into mercury and oxygen. In this reaction, mercury is A reactant A product A foul-smelling substance Sometimes a reactant and sometimes a product _____7. Which of the following observations does NOT indicate that a chemical change has occurred? Change of state Formation of a precipitate Absorption of energy Release of a gas

Public Comments

1. 2 3 1 4 4 1 1