Nomenclature
What is the correct name of this chemical compound NaH2PO4
Sodium Dihydrophosphate
Precision refers to
How close a measured number is to other measured numbers.
Resonance structures differ by
Placement of electrons only
6CO2(g) + 6H2O(l) → 6O2(g) + C6H12O6(ag) : Suppose you were determined that a particular plant consumes 37.8g of CO2 in one week. Assuming that there is more than enough water present to react with CO2 what mass of glucose (in grams) can the plant synthesize from the CO2
25.8g C6H12O6(ag)
The basis of the VSEPR model for molecular bonding is
Electron domains in the valence shell of an atom will arrange themselves so as to minimize repulsions.
What is the chemical formula for chromium (III) acetate
Cr(C2H3O2)3
Express the temperature, 422.35K, in degrees Celsius.
149.20C
Why don’t we draw double bonds between Be and Cl atoms in BeCl2
That would give positive formal charges to the chlorine atoms and a negative formal charge to beryllium atom.
What are the products of a combustion reaction
CO2(g) and H2O(g)
If you spill a strong acid on your skin what should you do ?
Rinse with a lot of water
What is the chemical formula for bromic acid
HBrO3
Elements with varied number of neutrons
Isotopes
Which of the following molecules is polar: SbF5, AsH3, I2, SF6
AsH3
To what volume should you dilute 0.200 L of a 15.0 M NaOH solution to obtain a 3.00 M NaOH solution?
1.00L
A sample of an ideal gas at 1.00atm and a volume of 1.93L was placed in a weighted balloon and dropped into the ocean. As the sample descended, the water pressure compressed the balloon and reduced its volume. When the pressure had increased to 20.0 atm, what was the volume of the sample? Assume that the temperature was held constant.
0.0965 L
What is the chemical formula for carbon tetrachloride
CCl4
An English chemist offered convincing evidence that supported the early atomic ideas of Leucippus and Democritus.
John Dalton
The hybridizations of IF3 and IF5 are - and - respectively
sp3d, sp3d2
The titration of a 10ml mL sample of an HCl solution of unknown concentration requires 12.54 mL of 0.100 M NaOH solution to reach the equivalence point. What is the concentration of the unknown HCl solution in M
0.125 M HCl
A sealed container holding 0.0255L of an ideal gas at 0.995 atm and 73 C is placed into a refrigerator and cooled to 39 C with no change in volume. Calculate the final pressure of the gas.
0.8973 atm
What is the chemical name for Ti(OH)2
Titanium (II) Hydroxide
The experiment gave an unexpected result. A majority of the particles did pass directly through the foil, but some particles were deflected, as some even bounced back. In what experiment produced these results?
Rutherford’s Model
What mass in grams of hydrogen is produced by the reaction of 4.73g of magnesium with 1.83g of water? Mg(s) + 2H2O(l) → Mg(OH)2(s) + H2(g)
0.102g
In the reaction 2Mg(s) + O2(g) → 2MgO(s) which is the oxidizing agent and which is the reducing agent?
O2 is the oxidizing agent and Mg is the reducing agent
N2(g) diffuses at a rate that is - times that of Cl2(g) under the same conditions
1.6