Why do we need to balance chemical equations?
a) Mrs. Nuqui told us we had to
b) we have to equal the number of atoms on both sides of the arrow (--->)
c) we have to equal the number of atoms on both sides on the equal signs (+)
b) we have to equal the number of atoms on both sides of the arrow (--->)
100
Bases are a group of _______?
ionic compounds
200
What is the last family on the right side of the periodic table?
Nobel gases
200
What are molecular compounds made up of?
all non-metals
200
Write and balance the word equation
nitrogen + hydrogen ----> Ammonia (NH3)
2N+3H----->2NH3
200
when ________ are added to _______ the react to produce a _______ and _________.
Fill in the blanks]
a) acid, bases, dirt, vingear
b) acid, bases, vingear, water
c) acid, bases, salt, water
d) acid, bases, water, salt
c) acid, bases, salt, water
300
What are polyatomic compounds?
Ions that are made up of more than one element
300
Name all the numerical prefixes that molecular compounds use
Name the following replacements
a) A+BC----> AC+B
b) AB+CD----> AD+CB
c) A+B-----> AB
a) single replacement
b) double replacement
c) decomposition
300
When naming acids you must have these 2 things.
start it with an H and end with acid
400
When naming a non-metallic ion and a metallic ionhow do you tell the difference between them?
A non-metallic ends in ide, and a metallic uses the full name and ion on the end
400
How do you name a molecular compound?
1. write the name of teh first element and choose the correct prefix for the number of atoms that the first element has
2. write the name of the second element and choose the correct prefix for the second element and change the ending of the second element to "ide"
400
What type of replacement is this?
Magnesium + silver nitrate----> silver + magnesium nitrate