Name the element
What is the symbol for the element "Oxygen"?
O
Is "H" an element or a compound?
element
How many atoms does the compound "H2O" have?
3
A pizza is an example of a mixture. True or False
True
What is a compound?
When you put two or more elements together
What is the symbol for the element "Carbon"?
C
Is "He" an element or a compound?
element
How many atoms does the compound "CO2" have?
3
What is a mixture?
A combination of two or more substances that are not chemically combined
The properties of a compound are different from the properties of the elements that make up the compound. True or False?
True
What is the symbol for the element "Hydrogen"?
H
Is "H2O" an element or a compound?
compound
How many atoms does the compound "CH4" have?
5
How can you separate a mixture of salt+water?
By boiling it. The water will evaporate and the salt will be left behind
What is an element?
A pure substance that cannot be separated into simpler substances by physical or chemical means
What is the symbol for the element "Calcium"?
Ca
Is "Ca" an element or a compound?
element
How many atoms does "Ca" have?
1
What is a Heterogenous mixture?
A mixture where you can see all of it's different parts
How many different elements are in this chemical formula: C2H2ClK3
4
What is the symbol for the element "Neon"?
Ne
Is "CH4" an element or a compound?
Compound
How many atoms does "NaHCO3" have?
6
Two examples of homogeneous mixtures
chocolate milk, air
Compounds are different than elements because compounds are
A combination of two or more elements