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Definitions
Chemical Reactions
Short Answer
Multiple Choice
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100
What is it called when matter changes based on size, shape, volume, and the phase of the matter?
What is a physical change?
100
What are the multiple elements that are put together to make a product called?
What is a reactant?
100
Name two materials that result from chemical substances?
Possible Answer: What is concrete made with cement?
100
Give an example of a chemical change?
Varies....
100
When you are using a new cleaning product what should you do first?
What is read the directions?
200
What is it called when a substance or kind of matter changes into another completely different kind of matter?
What is a chemical change?
200
What is the final product of a group of reactants?
What is a product?
200
Identify the properties that materials have that make them useful for human lives?
Example: Vitamins, help cure or prevent diseases.
200
Give an example of combustion.
Varies...
200
What is the name of the bacteria-killing substance that Alexander Fleming accidentally discovered?
What is penicillin?
300
What is it called when something burns giving off energy?
What is combustion?
300
What is a combination reaction?
What is a reaction when elements combine to form a product?
300
Explain how rubber is treated.
Rubber is treated through heat and the addition of sulfur
300
Which of the following best describes what happens during a chemical reaction?
Matter is destroyed Matter is not changed Matter is created and destroyed Matter is neither created nor destroyed
300
How has chemistry helped transportation? (2 part answer)
What is through gas and rubber tires?
400
What is a large molecule made of many identical smaller units connected together?
What is a polymer?
400
What is a replacement reaction?
What is when one or more compounds split apart and the parts switch places, just as two trucks can switch trailers?
400
What are the advantages of treated rubber?
What is the rubber is able to handle all weather conditions and lasts longer?
400
If a scientist was using indicator pair and it turned red, what would that mean?
What is it would be a strong acid?
400
What color would indicator paper turn if you were testing a base?
What is either green, blue, or purple?
500
What is a special kind of sentence that shows what happens during a chemical reaction?
What is a chemical equation?
500
What is a decomposition reaction?
What is when compounds split apart to form smaller compounds or elements?
500
How can chemical reactions help archeologists with fossils?
What is vinegar can help wear away dirt and other unwanted materials from the fossil?
500
A tent is made from a polymer developed in a chemical laboratory. What is the name of that polymer?
What is nylon?
500
What is the theory that states matter can not be created or destroyed during a chemical reaction?
What is the Law of Conservation of Mass?