Chapter 3: Atomic Theory
Chapter 4: Periodic Table
Chapter 5: Ionic Bonding
Chapter 6: Covalent Bonding
Chapter 8: Chemical Equations
100
This scientist discovered the nucleus in his gold foil experiment.
Who is Rutherford.
100
This law states that the physical and chemical properties of the elements tend to repeat in a systematic manner with increasing atomic number.
What is periodic law
100
Ionic bonds form due to a ______________ of electrons.
What is transfer.
100
Covalent bonds form due to a ______________ of electrons.
What is sharing.
100
Balance the following equation: ___ Ca3(PO4)2 + ______ H2SO4 --> _____ CaSO4 + ____H3PO4
__1_ Ca3(PO4)2 + __3__H2SO4 --> _3__CaSO4 + __2__H3PO4
200
When a beam of particles passed through a cathode ray tube from the cathode towards the anode and moved the paddle wheel in the middle of the tube, _____________ concluded that _______________________.
Thomson, the atom must contain particles that were negatively charged and had mass.
200
What happens to atomic radius as you go down a group on the periodic table? What happens to atomic radius as you go left to right across the periodic table?
It increases It decreases
200
Draw the Lewis structure of Calcium Oxide.
[Ca]2+ [O]2- (O has 8 electrons around it)
200
Draw the Lewis dot structure for: sulfur NH3
. :S: . .. HNH H
200
What type of reaction is between Zn and HCl?
Single Replacement
300
Give three characteristics of the nucleus.
Positively charged, contains protons and neutrons, and contains nearly all the atom's mass.
300
Which is more electronegative: Bromine or calcium?
Bromine
300
Which of the following compounds is ionic: PH3 O2 N4O10 They are all covalent.
They are all covalent.
300
Name the following: S2O10 CO2 Tetracarbon Hexafluoride P5Cl7
Disulfur decoxide carbon dioxide C4F6 Pentaphosphorous heptachloride
300
What type of reaction yields CO2 and H2O?
Combustion
400
All isotopes of carbon have the same number of _________ because for isotopes, the number of _______________ changes.
protons/electrons, neutrons
400
Which has a greater atomic radius: Cl, S, or O?
What is S
400
Name the following: KBr MgF2 Cu(NO3)2 Na2CO3
Potassium Bromide Magnesium Fluoride Copper (II) Nitrate Sodium Carbonate
400
The VSEPR theory of bonding accounts for the shape of a molecular compound because it states that _________ pairs want to be as ____________ ___________ as possible from each other.
electron; far away
400
What is the difference between coefficients and subscripts?
Coefficients tell how many molecules you have and can be changed when balancing, subscripts determine how many atoms you have and cannot be changed.
500
Why did we see different colors for each element in the flame test lab?
each element has a unique spacing between energy levels.
500
Elements in the same _____________ share the same _____________properties because they have the same number of ______________ __________________.
Group, chemical, valence electrons
500
Write the formula for the following: Zinc (II) Nitrate Lithium Oxide Calcium Oxide Aluminum Bromide
Zn(NO3)2 Li2O CaO AlBr3
500
What shape is BF3? Draw the Lewis structure, determine its polarity, and draw the shape.
Trigonal Planar
500
Write the formula equation and then balance the equation. What type of reaction is it? Aqueous sodium phosphate reacts with aqueous potassium hydroxide to yield aqueous sodium hydroxide and solid potassium phosphate.
Na3PO4 (aq) + 3KOH (aq) --> 3NaOH (aq) + K3PO4 (s) Double replacement
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