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Final Study Guide


Bubble of gas appear When alka seltzer is dropped into water , carbon dioxide , sodium cit rate, and water is produced. The escaping carbon dioxide is what creates the fizz.
Precipitate Forms One of the more common signs of a chemical reaction. A solid that forms from a solution or another solid.
Color change Changing a chemicals pH can change its color. Going from scid to base or base to acid is a chemical change that usually results in the changing of color
Temperature Change In most reactions the temperature increases without being heated by an outside force.
Light is emitted When bending a glow stick, a chemical process is started.
Change in smell/ Taste Usually the result of decomposition of a food, organism , or chemical.
Melting change from solid to liquid Freezing change from liquid to solid
Evaporation change from liquid to gas Condensation change from gas to liquid
Sublimation change from solid to gas
Endothermic A reaction that absorbs heat energy is called called an endothermic reaction.
Exothermic Is a chemical reaction that produces heat.
Acids turns red Taste sour
Base turns blue Bases are bitter
Motion A change in the position of an object compared to another object.
Catalyst Margarine is created through the process of hydrogenation , and liquid oil is converted to solid flat.
Kinetic Energy Formula 1/2 (mass) x Velocity2
Alternating Current Electricity flows in two direction
Acceleration due to gravity The change in velocity caused by a gravitational force.
Covalent Bonds Forms when atoms share electrons. They form between to nonmetals
Law of conservation of mass A fundamental principle of science stating that mass cannot be created or destroyed.
Amplitude Height or strength of a wave.
Created by: keetylou3