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105-Final
Final exam questions
20
Chemistry
Undergraduate 3
12/10/2010

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Cards

Term
Which statement is not true about covalent compounds
Definition
covalent compounds tend to have high boiling points
Term
Which bond has the most ionic character
Definition
Na-F
Term
Use VSEPR to predict the atom geometry of the indicated oxygen in nitric oxygen in nitric acid
Definition
tetrahedral
Term
which equation represents the process of methanogenesis
Definition
CO2 + 4 H2- CH4 + 2 H20
Term
Which is not an anthropogenic source of methane gas
Definition
swamps/wetlands
Term
factors affecting the rate of a reaction include
Definition
1. temp 2. concentration 3. presence of the catalyst 4. all the above
Term
which one of the following represents the greatest number of calcium (Ca) atoms
Definition
8.8 * 10(8) gram of calcium
Term
what is the molar mass of vit C (C8H8O6)
Definition
176 g/mol
Term
a neutral atom can be converted to a neg ion of it
Definition
gains electron
Term
what is name of the following compound K2CO3
Definition
potassium carbonate
Term
what is the formula for tin (IV) chloride
Definition
SnCl4
Term
which of the following pairs of atoms share electrons equally
Definition
N and Br
Term
What is the solute in a solution of potassium sulfide
Definition
potassium sulfide
Term
if 2 grams of hydrogen react with chlorine to form 73 grams of hydrogen chloride, what weight of chlorine must react with the 2 grams of hydrogen H2 + Cl2 - 2 HCl
Definition
71 grams Cl2 (g)
Term
What is Avogadro's number
Definition
6.02 * 10 (23) things/mole
Term
how many grams are in 2.00 mol of carbon tetrachloride
Definition
304
Term
What numbers are needed to balance the following equation
Definition
3,2,1,3
Term
Which of the following with decrease the production of ammonia
Definition
removing hydrogen
Term
which substance has ionic bonds between atoms
Definition
MgCl2
Term
in the balanced equation C2H12 + 802 - 5CO2 + 6H2O; the number of moles of water that are produced for each mole of O2 that reacts is
Definition
3/4
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