Basis Of S2 Chemistry Pt 2 Flashcards
Name 2 liquids
Bromine and mercury
What is a chemical change
A chemical reaction is a process in which one or more substances are chemically changed into different substances
What is a physical change?
It is when no new substance is formed and can most often be reversed
What is the name for the change of liquid to solid
Freezing
What is the name of the change from solid to liquid
Melting
What is the name of the change from liquid to gas
Evaporation
What is the name for the change from gas to liquid
Condensation
What is the periodic table
It is where you can find all the known elements
What are the horizontal rows in the periodic table called
Periods
What are the vertical lines in the periodic table called
Groups
Metals on the _____ side of the “zig zag” line in the periodic table
Left
If a substance doesn’t allows electricity to pass through it it is called ____
Insulator
Group 1 elements are called
Alkali Metals
Group 0 elements are called
Nobel gasses
Group 7 elements are called
Halogens
The block of elements in the middle of the periodic table are called
Transition metals
What is the symbol for silver?
Ag
What is the symbol for gold?
Au
What is a compound?
A compound is formed when 2 or more elements are chemically bonded together
What is a mixture?
A mixture is formed when chemicals are mixed and not chemically bonded
What is the sign for a solid chemical?
s
What is the sign for a liquid chemical
l
What is the sign for a gas chemical
g
What is the sign for a chemical desolved in water
aq
What are the chemicals used in a reaction called?
Reactants
What side do reactants appear?
The left
Write a word equation for this chemical reaction: hydrogen gas burns in oxygen gas to make liquid water
Hydrogen + oxygen-> water
True or false if a compound ends in ide it contains oxygen
False
True or false if a compound has the ending ate it contains oxygen
True
True or false if a compound ends in “ite” it doesn’t contain oxygen
False
What elements are present in this compound? : carbon dioxide
Carbon and oxygen
What does mono mean
1
What does tetra mean?
4