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Compound and Mixture
Compound vs. Mixture
9
Science
8th Grade
03/31/2011

Additional Science Flashcards

 


 

Cards

Term
What are compounds?
Definition
2 or more elements chemically bonded
Term
Give an example of a compound
Definition

NaCl (salt)

H2O (water)

CO2 (carbon dioxide)

 

It must contain atleast elements (2 or more capital letters)

Term
O2  is an example of ________
Definition
element because it is only made of oxygen
Term
____________ can't be separated unless by chemical means
Definition
Compounds - because they are made by chemical bonds
Term

3H2O

 

How many hydrogen atoms are there?

How many oxygen atoms are there?

Definition

6 Hydrogen atoms and 3 Oxygen atoms.

Remember you can only change the big number in front (coefficient)

Term
What is a mixture?
Definition
2 more substance (compounds) that are DO NOT form chemical bonds
Term

Which one does not fit as a mixture? and Why?

pizza

salt water

salt

Definition
Salt because it is a compound NaCl
Term
Is soil an element, compound, or mixture?
Definition

Mixture because it is made up of a variety of different materials.

 

*most things we eat and com into contact are mixtures

Term
How many different elements make up one molecule of glucose  C6H12O6?
Definition

3

 

Carbon, Hydrogen, and Oxygen

 

 

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