Types of Reaction
What type of reaction is the following?
SO2 + O2 → SO3
Synthesis
What is the chemical formula for Carbon Tetrafluoride?
CF4
Describe what happens to the electrons in an Ionic Bond
Electrons are transferred from a Metal to a Non Metal Element
Draw the Lewis electron dot diagram for a Nitrogen in a ground state
Nitrogen with 5 dots around it
What was the two biggest discovery found in the Gold Foil Experiment?
Atom consist of mostly empty space and a dense small nucleus
Balance the following Chemical Equation:
____ Fe + ____ HCl 🡪 ____ FeCl2 + ____ H2
1__ Fe + _2__ HCl 🡪 __1__ FeCl2 + __1__ H2
What is the IUPAC name for TeBr2
Tellurium dibromide
In NaCl, which element loses electrons and which gains an electron?
Na Loses 1 electron
Cl gains 1 electron
What occurs when an atom in an excited state returns to the ground state?
Energy is released in a form of light
What is the nuclear charge of an atom with a mass of 23 and an atomic number of 11?
11+
Determine the Gram Formula mass of Glucose C6H12O6 . (Include Units)
180 g/mol
What is the strongest IMF present in nitrogen tribromide?
Dipole Dipole
What is the IUPAC name for MgO?
Magnisium Oxide
Which electron configuration represents an atom of chlorine in an excited state?
a) 2-8-7-2
b) 2-8-7
c) 2-8-8
d) 2-7-8
d) 2-7-8
Describe the distribution of charge in an atom in terms of Protons, Neutrons, and Electrons
Proton = 1+
Neutron = 0
Electron = 1-
Proton and neutron is in the nucleus, electron is outside the nucleus
C6H12O6(aq) 🡪 2C2H5OH(aq) + 2CO2(g)
How many moles of CO2 will be produced if we start with 7 moles of C6H12O6
14 moles of CO2
What type of bonds does CO2 have? Single, Double or triple bonds?
Double Bond
What is the IUPAC name for Ca(NO3)2
Calcium Nitrate
List the following from largest to smallest atomic radius. Ca I Br Na
Largest (Ca I Br Na) Smallest
How do we calculate the mass of an atom?
Add the number of Neutrons and Protons
How many moles of Dicarbon Tetroxide are in 50 grams of Dicarbon Tetroxide?
0.57 moles of CO4
Determine the bond polarity and molecule polarity of NH3
Bond Polarity_____________________
Molecule Polarity______________________
Polar Bonds
Polar Molecule
What is the IUPAC name for PbCl4?
Lead IV Chloride
Which trend is observed as the first four elements in group 17 on the periodic table are considered in order of increasing atomic number?
a)Electronegativity increases,
b)First Ionization decreases,
c)The number of Valence electrons increases
d) The number of electron shells decreases
First Ionization energy decreases
Element X has two isotopes. If 72% of the element has an isotopic mass of 84.9 amu and 28% has an isotopic mass of 87.0 amu, what is the average atomic mass of Element X?
(0.72x 84.9) + (0.28x 87.0) = 85.288 amu