Cutting a piece of paper in half is an example of this type of change
Physical
To name these compounds, you use prefixes to show how many of each atom you have. (e.g. Mono, di, tri)
Molecular (or Covalent)
What two particles are found in the nucleus of an atom
Proton and Neutron
This is the type of observation that uses numbers as a description
Quantitative
This grouping of elements has properties of both metals and non-metals, and give one example of this grouping
Metalloids
Name this compound (you can use the periodic table) and tell if it is molecular or ionic: PF5
phosphorus pentafluoride, molecular
How many atoms are in the molecule: C6H12O6
6 C + 12 H + 6 O = 24 atoms
Tell the name of this compound, and say if it is ionic or molecular
Ca3P2
Calcium Phosphide
This type of reaction releases heat
This is thee term for when an atom has a different number of neutrons than it normally has
Isotope
Rows of elements on the periodic table are called these, and what do they indicate
They are called periods, they show how many Valence Shells the element has
What is the difference between Iron (II) oxide and Iron (III) oxide?
Iron (II) oxide is made using the Fe 2+ ion, and Iron (III) oxide is made using the Fe3+ ion.
Name 3 physical properties of all metals
Metals are shiny, malleable, ductile, and conductors of electricity.
These are three differences between molecular and ionic compounds
Ionic has:
Low Boiling/Melting points
Conducts Electricity
Has a Crystal Structure
Made of ions
What are the products for Combustion (What is the other side of the equation)
fuel + oxygen → _______ + ________ + ______
carbon dioxide + water (+ heat)
Which of the following diatomic elements are missing from the list:
Bromine, Hydrogen, Oxygen, Flourine, Nitrogen
Iodine and Chlorine