Atomic Structure
Bonding & Compounds
Chemical Reactions
Acids & Bases
Energy in Reactions
Radioactivity
100
A subatomic particle with a -1 charge.
What is an electron?
100
The bond created by the attraction formed when electrons are transferred between atoms.
What is an ionic bond?
100
A reaction type with a single reactant.
What is a decomposition reaction?
100
The pH of a neutral solution.
What is 7?
100
The minimum energy required for a reaction to occur.
What is activation energy?
100
A type of radioactive decay with a positive charge.
What is alpha decay?
200
The method of determining the number of protons in an atom from the periodic table.
What is the atomic number?
200
The type of compound created when two non-metals share electrons.
What is a covalent compound?
200
The type of reaction that involves oxygen and always produces oxides.
What is a combustion reaction?
200
The ion that indicates a compound is an acid.
What is a hydrogen ion (H+)?
200
A reaction that absorbs energy from the surroundings.
What is an endothermic reaction?
200
A type of radioactive decay with no mass and no charge.
What is gamma decay?
300
The result of an atom either gaining or losing electrons.
What is an ion?
300
The way that the ionic charge of a multivalent metal is indicated.
What is a roman numeral?
300
The reaction type of 2 HNO3 + Mg(OH)2 --> 2 H2O + Mg(NO3)2
What is neutralization?
300
The ion that indicates a compound is a base.
What is a hydroxide ion (OH-)?
300
The way energy flows in an exothermic reaction.
What is from the system to the surroundings.
300
The product produced by an atom of polonium-214 undergoing alpha decay.
What is lead-210 and an alpha particle?
400
A diagram that shows only the identity of an atom and the number and placement of valence electrons.
What is a Lewis diagram?
400
The name of the compound with formula Fe2O3.
What is iron (III) oxide?
400
The products produced by the double replacement reaction involving CuBr2 and AgNO3
What are AgBr and Cu(NO3)2?
400
An indicator that turns from colourless to pink at around pH 8.5
What is phenolphthalien?
400
The change in temperature created during an endothermic reaction.
What is a decrease in temperature?
400
The nuclear reaction that releases energy by breaking large nuclei into smaller ones.
What is nuclear fission?
500
The number of valence electrons in a nitrogen atom.
What is 5?
500
The name for a compound containing 2 atoms of nitrogen and 4 atoms of sulphur.
What is dinitrogen tetrasulphide?
500
The type of products produced by the reaction between Zn metal and the compound Pb(NO3)2
What are Zn(NO3)2 and Pb metal?
500
The name of the acid with containing a nitrate ion.
What is nitric acid?
500
The comparison of energy of products vs. reactants in an exothermic reaction.
What is products have less energy than reactants?
500
The reason that nuclear fusion can only proceed under extremely high temperatures and pressures, making impossible to do sustainably in a lab.
What is the repulsion of nuclei?
600
The reason that the noble gases are extremely non-reactive.
What is a full valence shell?
600
The way that the number of atoms in a covalent compound is expressed.
What are prefixes?
600
The balanced reaction describing the synthesis of the compound MgS.
What is 8 Mg + S8 --> 8 MgS?
600
The name of the acid with the the chemical formula H2S.
What is hydrosulphuric acid?
600
A diagram that shows energy changes during a chemical reaction including activation energy.
What is an energy level diagram?
600
The missing product in the following nuclear reaction:
What is cesium-137?