Atomic Structure & Trends in Periodic Table
How many electrons does a neutral atom of sodium have?
11
Name the four main factors that affect reaction rate.
Temperature, concentration, surface area, agitation
What charge does a sodium ion have?
+1
__H₂ + __O₂ → __H₂O
2H₂ + O₂ → 2H₂O
What gas is produced when an acid reacts with a metal?
Hydrogen
What is the electron configuration of sodium (Na)?
2,8,1
Increasing temperature generally makes a reaction faster or slower?
Faster
What charge does an oxide ion have?
-2
__N₂ + __H₂ → __NH₃
N₂ + 3H₂ → 2NH₃
What two products are formed when an acid reacts with a base?
Salt and water
Which group of the periodic table contains the most unreactive elements?
Group 18
What happens to the rate of reaction when concentration increases?
Increases
What is the chemical formula for magnesium chloride?
MgCl₂
__Mg + __O₂ → __MgO
2Mg + O₂ → 2MgO
What gas is produced when an acid reacts with a carbonate?
Carbon Dioxide
As you move down Group 1, does metal reactivity increase or decrease?
Increase
Why does crushing a solid reactant increase its reaction rate?
Increases
What is the chemical formula for calcium hydroxide?
Ca(OH)₂
__Al + __O₂ → __Al₂O₃
4Al + 3O₂ → 2Al₂O₃
What are the three products when hydrochloric acid reacts with calcium carbonate?
Calcium Chloride, water and carbon dioxide
Which is more reactive: potassium or lithium?
Potassium
What must particles have for a successful collision?
Sufficient energy and correct orientation/direction
What is the chemical formula for aluminium sulfate?
Al₂(SO₄)₃
__C₃H₈ + __O₂ → __CO₂ + __H₂O
C₃H₈ + 5O₂ → 3CO₂ + 4H₂O
What salt is produced when sulfuric acid reacts with magnesium?
Magnesium Sulfate