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13 questions
How many different atoms
are there in a compound?
0
1
2 or more
-1
Which of the following does not describe elements?
All particles are alike
Can be broken down into simpler substances
Have unique sets of properties
Join together to form compounds
Which of the following best describes chicken noodle soup
element
compound
mixture
solution
What is the chemical formula for water?
NaCl
CO2
NH3
H2O
Example of a homogeneous mixture
sweet tea
pizza
guacamole
helium
What is a mixture?
an atom
2 or more substances that are together in the same place, but their atoms are not chemically bonded
a substance that cannot be broken down into any other substances by physical or chemical means
A substance made of 2 or more elements that are chemically
combined in a set ratio
The smallest unit of an element that has all the basic properties of the element is called what?
compound
mixture
element
atom
What is the atomic number?
8
15.999
16
?
How would you separate sand and water?
boil
filter
magnetic
put it in the fridge
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