Periodic Table
Write the group and period for Phorphurous
Group - 15
Period - 3
Determine if electronegativity of elements increase or decrease when moving across the periodic table (from left to right)
Increases
Identify the reactants in this formula:
NaOH + HCl → NaCl + H2O
NaOH + HCl
or
Sodium hydroxide + Hydrochloric acid
Determine if having a catalyst present increases or decreases the rate of reaction
Increases
Determine the type of elements used in metallic bonding
metals
Name the 3 types of metal groups on the periodic table
Alkali metals, alkali earth metals, Transition metals
List the 4 main types of element properties
Melting point, Atomic radius, Electronegativity, Reactivity
Write the four physical states of matter used in formula equations
solid, liquid, gas, aqueous
List the 5 factors that effect the rates of reactions
Agitation, Concentration, Temperature, Surface area, Catalysts
Name the 3 types of bonding
metallic, covalent, ionic
Write the electron configuration for Chlorine
2, 8, 7
Describe what the melting point of a substance is
the temperature at which the substance goes from a solid state to a liquid state.
(answer must include something about substance going from solid to liquid)
Write the formula equations for the following scenario. Include the state of matter in the formula.
One molecule of nitrogen gas (N2) and three molecules of hydrogen gas (H2) react to form two molecules of ammonia (NH3).
N2 + 3H2 --> 2NH3
Determine the type of reaction in the following equation:
sodium and chlorine react together to produce sodium chloride.
Synthesis
identify the type of bonding occurring in the following equation:
3N₂ + 9H₂ → 6NH₃
Covalent
What is a valence electron
the electrons in the outermost electron shell (valence shell)
(must include something about electrons in last shell)
Determine the property of an element that the following sentence is describing
Increasing proton count increases the nuclear charge.
Atomic radius
Balance the following equation:
KClO3 → KClO4 + KCl
4KClO3 → 3KClO4 + KCl
Determine the type of reaction occurring in the following example:
2Na + 2H2O → 2NaOH + H2
Single displacement
Identify the type of bonding present in the following equation:
Sodium chloride + Silver nitrate → Silver chloride + Sodium nitrate
NaCl + AgNO3 → AgCl + NaNO3
Ionic (both metals and non-metals are present)
Write the ionic charge and ionic formula for Calcium
Ionic Charge:
Ionic Formula:
Ionic Charge: +2
Ionic Formula: Ca2+
Determine the following properties for Lithium:
Atomic radius - large/small
Melting point - high/low
Reactivity - high/low
Electronegativity - high/low
One of the larger atomic radius in period 2 due to weak nuclear charge.
High melting point because it is a metal.
High reactivity because it’s located in group 1.
Low electronegativity due to weak nuclear charge.
Write a balanced formula equation from the following word equation.
Aluminum (Al) and hydrochloric acid (HCl) react to form aluminum chloride (AlCl3) and hydrogen gas (H2).
Before balancing: Al + HCl → AlCl₃ + H₂
After balancing: 2Al + 6HCl → 2AlCl₃ + 3H₂
Write the balanced formula equation for the following description and identify the type of reaction occurring.
When heated, mercury(II) oxide (HgO) breaks down to form metallic mercury (Hg) and oxygen gas (O2).
2HgO (triangle above arrow) → 2Hg + O2
Decomposition
Identify the type of bonding in the following:
The compound carbon tetrachloride (CCl4)
Covalent