Give the name or formula for:
1. Magnesium Chloride
2. CCl4
3. NO
1. MgCl2
2. Carbon Tetrachloride
3. Nitrogen Monoxide
Which of the following elements in each trio is more electronegative?
1. Mg, Be, Ba
2. P, Si, S
3. -
1. Be
2. S
Give the name or formula for:
1. Chromium (III) Phosphide
2. BaO
3. Nitrogen Tribromide
1. CrP
2. Barium Oxide
3. NBr3
Directions: Arrange the following elements in order of increasing electronegativity
1. Aluminum, Neon, Oxygen, Sulfur
2. Fe, Zr, Ni, Ti
1. Neon, Aluminum, Sulfur, Oxygen
2. Zr, Ti, Fe, Ni
Give the name or formula for:
1. CaH2
2. Dinitrogen Pentaoxide
3. Mercury (I) Oxide
1. Calcium Hydride
2. N2O5
3. Hg2O
Directions: Arrange the following elements in order of decreasing electronegativity
1. Sc, K, Zn, Br, Ca
2. Chlorine, Arsenic, Phosphorous, Fluorine
3. Rb, Li, H, Fr
1. Br, Zn, Sc, Ca, K
2. Fluorine, Chlorine, Phosphorus, Arsenic
3. H, Li, Rb, Fr
Give the name or formula for:
1. SnCl4
2. Silver (I) Sulfide
3. P4O10
4. ICl
1. Tin (IV) Chloride
2. Ag2S
3. Tetraphosphorus Decaoxide
4. Iodine Monochloride
Give the formula mass for:
1. CuSO4
2. CaCOH
3. K3PO4
1. 159.5 g/mol
2. 69.09 g/mol
3. 212.3 g/mol
Give the name or formula for:
1. CO
2. Sulfur Hexafloride
3. Bromine Heptafluoride
4. CoI2
1. Carbon Monoxide
2. SF6
3. BF7
4. Cobalt (II) Iodide
Give the name or formula for:
1. Barium Nitride
2. B2Cl4
3. Xenon Trioxide
4. NiS
1. Ba3N2
2. Diboron Tetrachloride
3. XeO3
4. Nickel (II) Sulfide
How many moles are in 72.9 g of HCl?
1.999 mol of HCl
Name or give the formula for the following polyatomic ions:
1. Nitrite
2. SO4-2
3. ClO-
4. Permanganate
1. NO2-
2. Sulfate
3. Hypochlorite
4.
If you have 7.46 x 1023 molecules of KNO3, how many moles do you have?
1.24 mol of KNO3
Determine the empirical formula for: 38.76 % Ca; 19.97 % P; 41.27 % O
Ca3P2O8
How many molecules are in 48.0 grams of NaOH?
7.23 x 1023 molecules NaOH
Give the electron geometry and molecular geometry of:
1. HCN
2. NI3
1. HCN
~EG:Linear; MG:Linear
2. NI3
~EG:Tetrahedral; MG:Trigonal pyramidal
A 170.0 g sample of an unidentified compound contains 29.84 g of sodium, 67.49 g of chromium, and 72.67 g of oxygen. What is the compound’s empirical formula?
Na2Cr2O7
What is the molecular formula for a compound that is 46.16% carbon, 5.16% hydrogen and 48.68% fluorine if the molar mass of this compound is 156.12 g?
C6H8F4
Give the formula charge for each atom in:
1. O22-
2. ClO3-
1. Both oxygens: -1
2. Chlorine: +2 All Oxygens: -1
Give the formula charge for each atom in:
1. Carbonate Ion
2. SiF4
1. Carbon: 0 Double-Bonded Oxygen: 0 Single-Bonded Oxygens: -1
2. Silicon: 0 All Fluorines: 0
Give the formula charge for each atom in:
1. HCCH
2. Ammonium Ion
1. All Hydrogens: 0 All Carbons: 0
2. All Hydrogens: 0 Nitrogen: +1
Give the electron geometry and molecular geometry of:
1. BeF2
2. BH2-
1. BeF2
~EG:Linear; MG:Linear
2. BH2-
~EG:Trigonal planar; MG:Bent
Give the electron geometry and molecular geometry of:
1. BrO3-
2. AlH3
1. BrO3-
~EG:Tetrahedral; MG:Trigonal pyramidal
2. AlH3
~EG: Trigonal planar; MG: Trigonal planar
Give the electron geometry and molecular geometry of:
1. O3
2. CHCl3
1. O3
~EG:Trigonal planar; MG:Bent
2. CHCl3
~EG: Tetrahedral; MG: Tetrahedral
Give the electron geometry and molecular geometry of:
1. BrF3
2. BrF5
1. BrF3
~EG:Trigonal bipyramidal; MG: T-shaped
2. BrF5
~EG:Octahedral; MG: Square pyramidal