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Matter
Naming
Reactions
100
What is an element?
An element is a substance that cannot be broken down into any simpler substances.
100
Ionic compounds are a combination of: a) two non-metals b) two metals c) a metal and a non-metal
C.
100
What are the 6 types of reactions?
Combustion, decomposition, synthesis, single displacement, double displacement and neutralization.
200
What are the chemical families?
alkali metals, alkaline earth metals, halogens and noble gases.
200
T or F Ionic compounds must remain positive.
F.
200
What is the difference between single and double displacement?
Single lonely element replaces one of the elements in a partnership. Double is when the metals of two pairs swap places.
300
What is an atomic number?
The number of protons in an atom.
300
T or F when naming covalent compounds, use prefixes.
T.
300
What is the difference between partial and complete combustion?
Complete combustion results in the making of water and carbon dioxide. Incomplete combustion produces carbon monoxide and soot.
400
What is the atomic mass?
The average mass of an atom.
400
What is the prefix used before an element that has 9 atoms in a covalent compound?
Nona.
400
What is an example of a synthesis reaction?
Fe + O2 ---> Fe2O3
500
What is matter?
Anything that has mass and takes up space.
500
What is the chemical formula for the polyatomic ion, ammonium?
NH4
500
Burning paper is an example of which type of combustion? How do you know?
It is a form of incomplete combustion because it leaves reminents behind (ash) and the flame burns kind of yellow.