Exploring Matter
Elements that are shiny, malleable and ductile
What are metals
Conductivity and malleability are what kind of properties
What are physical properties
The number of protons in the nucleus of one atom of an element
What is the atomic number
Pure substances formed when a nonmetal and nonmetal combine
What are molecular compounds
MgI2 is an ionic or molecular compound?
What is an ionic compound?
Formed when two or more elements combine chemically
What is a compound
What kind of pure substance or mixture is sugar dissolved in water?
What is a solution
Group 18 in the periodic table
Noble gases
Term used to describe the materials at the start of a reaction
What are reactants
Chemical formula for salt.
What is NaCl?
Rusting is an example of this chemical change
What is corrosion?
This family on the periodic table is highly reactive and wants to gain an electron.
What are Halogens
Chemical formula of triphosphorous hexoxide?
What is P3O6
Chemical reaction that absorbs heat/energy
Endothermic reaction
Chemical name of C4H10
What is tetracarbon decahydride?
Type of change that results in the formation of a different substance or substances
What is a chemical change
Type of subatomic particle with a negative charge
What is an electron
Vertical columns in the Periodic Table
Group or family
Compounds with low melting and boiling points because the forces between the molecules are weak. Poor conductors of electricity. Can be solids, liquids or gases at room temperature.
Molecular Compounds
Chemical formula of Al2S3.
What is aluminum sulfide?
What would be evidence of a chemical change for baking a cupcake? Provide at least TWO.
What is:
Irreversible; Odour change; colour change; new substance with new properties; gas created
Dissolving is a physical or chemical change?
What is a physical change?
Properties would you expect magnesium oxide to have
Crystal structure, good conductivity, and be solid a room temperature
Name 2 types of chemical reactions involve Oxygen as a reactant?
Corrosion, combustion, Photosynthesis
Chemical name of CrN
What is chromium (III) nitride?