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Test Questions 11/9/15

QuestionAnswer
Characteristics of a substance that can be measured or observed without changing the identity of the material is.. Physical Property
All of the following are chemical reactions except Melting ice
Which of the following is NOT evidence of a chemical change Color changing
Which of the following is an example of a chemical chnge iron rusting
what is the difference between a chemical ad physical change A chemical change is when a new substance is created and a physical change is when nothing new is created
what is the difference between a physical and chemical property chemical property is a chemical that has not reacted in any way a physical property the characteristics of a substance
what is the difference between a chemical change and a chemical property a chemical property has not reacted and a chemical change has
what is the difference between a physical property and physical change a physical property is the characteristics and a physical change is changing the form of the subctance
why is boiling water not a chemical reaction because the water is not changing it is still water
a reaction that starts as one thing and ends up as two new chemicals Decomposition
combines two chemicals into one new chemical Synthesis
replaces one element Single replacment
what reaction type will switch two molecules Double replacement
starts with 6 carbon atoms end with... 6 carbon atoms
two substances weigh 25g each what is the weight of the products 50g
how does a balanced chemical equation satisfy the law of conservation of mass because it shows that you can not create or destroy matter you can only change it
what is the difference between a molecule and an atom a molecule is made of atoms and an atom is the smallest unit of matter
Created by: LeeaMc
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