Show:
Physical or Chemical?
How compounds are formed?
Chemical Formulas
How compounds are named?
Acid or Base?
100
As wood burns, it changes to gases and ash. This is a ____________
Chemical Change
100
How many atoms are on energy level K
2
100
NaHCO contains how many elements
4
100
When naming a binary compound what does the second element's name end in
-ide
100
These taste sour
Acid
200
Chopping wood into tiny pieces represents a __________________ change
Physical
200
How many electrons are found on energy level N
32
200
The number 2 in H20 represents the ______________
subscript
200
Name the compound: MgO
Magnesium Oxide
200
These feel slippery
Base
300
A rusting nail represents a ________________ change
Chemical
300
An atom with a positive or negative charge is called an
Ion
300
SO4, CIO3, OH, PO4 are examples of
Radicals
300
Name the compound: HCL
Hydrogen Chloride
300
Has a PH of 5
Acid
400
A change in which the appearance or a substance change but the chemical properties stay the same
Physical change
400
What is the total amount of electrons the four levels will hold?
60
400
Scientists use symbols for elements to write a a ________________ for each compound
Chemical Formula
400
A compound that contains two or more elements is called a binary compound.
binary compound
400
Baking soda is a ___________
base
500
A change that produces one or more new substances is called a _____________________
Chemical Change
500
A magnesium atom holds 12 electrons, which level will the last electrons be found
M
500
What is the chemical formula for table salt
NaCL
500
If there are 3 or more elements in a compound, the compound will usually contain a ____________
radical
500
Turns litmus red to blue
Base