Vocabulary 1
Vocabulary 2
Review
Compounds 1
Compounds 2
100
This kind of change produces one or more new substances with new chemical properties.
What is a chemical change?
100
This is a compound that contains two elements.
What is a binary compound?
100
The following is a chemical change: painting a wall, boiling water, developing film, shredding cheese
What is developing film?
100
NaCl
What is sodium chloride?
100
Hydrogen chloride
What is HCl?
200
This kind of change changes the appearance of a substance, but the chemical properties stay the same.
What is a physical change?
200
This is a compound that reacts with metals to produce hydrogen and has a sour taste.
What is an acid?
200
The following is a physical change: baking bread, ice melting, rust forming on your bike
What is ice melting?
200
HCl
What is hydrogen chloride?
200
Calcium oxide
What is CaO?
300
This is the attractive force that holds atoms together.
What is a chemical bond?
300
This is a compound that contains a hydroxyl (OH) radical and has a bitter taste.
What is a base?
300
The following describes an acid: tastes sour, feels slippery, turns litmus from red to blue
What is tastes sour?
300
KBr
What is potassium bromide?
300
Copper Oxide
What is CuO?
400
This tells the kinds of atoms and how many of each kind of atom are in a compound.
What is a chemical formula?
400
This is a substance that changes color with an acid or a base.
What is an indicator?
400
The following describes a base: contains hydrogen, turns litmus from blue to red, tastes bitter
What is tastes bitter?
400
CaCl
What is calcium chloride?
400
water or hydrogen oxide
What is H20?
500
This is a number in a formula that tells the number of atoms of an element in a compound.
What is a subscript?
500
This is a number that tells whether a substance is an acid or a base.
What is pH?
500
The following substance is an acid: household cleaner with a pH of 10, lemon juice with a pH of 2, liquid soap with a pH of 8
What is lemon juice with a pH of 2?
500
FeO
What is iron oxide?
500
hydrogen sulfide
What is HS?
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