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1. If the delta H of a reaction is a negative quantity, the reaction is definitely
a. endothermic
b. unstable
c. exothermic
d. reversible

2.Which of the following is a mixture
a. water
b. wine
c. silver
d aluminum oxide

3. Name the most active non-metal in period 3
a. Na
b. Cl
c. Ar
d. S

4. where in a periodic series do you find strong base formers?
a. left
b. right
c. middle
d. inert gases

5. The process of separating components of a mixture by making use of the difference in their boiling points is called
a. destructive distillation
b. displacement
c. fractional distillation
d. filtration

6. the abnormally high boiling point of water in comparison to similar compounds is due primarily to
a. van Der waals forces
b. polar covalent bonding
c. dipole insulation
d. hydrogen bonding

7. a metallic oxide placed in water would most likely yield a(n)
a. acid
b. base
c. metallic anhydride
d. base anhydride

8. a solution can be both
a. dilute and concentrated
b. saturated and dilute
c. saturated and unsaturated
d. supersaturated and saturated

9. a salt derived from a strong base and a weak acid will undergo hydrolysis and give a solution that will be
a. basic
b. acid
c. neutral
d. volatile

10. for a metal atom to replace another king of metallic ion in a solution, the metal atom must be
a. a good oxidizing agent
b. higher on the electromotive chart than the metal in solution
c. lower on the electromotive chart than the metal in solution
d. equal in activity to the metal in solution

1. exothermic
(Exothermic reactions are those which release heat. Their delta
H is negative since the substance releases ie loses heat)

2.Wine
(Mixtures are substances that are made up of 2 or elements or
compounds. Water and Aluminium oxide are compounds, silver
is an element)

3. Na
(Na ie sodium is the most unstable element of period 3 and
hence is the most active. It is highly reactive).

4.left
(Strongest bases are formed by elements of group 1, which is
the leftmost period of the periodic table. This group includes
the elements lithium, sodium, potassium, .....)

5. fractional distillation
(this kind of distillation is done in parts, ie 2 or more liquids are
distilled out from the same solution)

6.hydrogen bonding
(Hydrogen bonding is the phenomenon wherein hydrogen
forms intemolecular bonds with electro negative elements
like oxygen. In water hydogen from one molecule bonds with
oxygen from other molucule, giving it a stong intermolecular
bonding)

7.Base
(Metallic oxides are geneally basic in nature)

8.saturated and dilute
(all other combinations are opposites of each other).

9.basic
(since the base is strong and acid is weak, the esulting solution
will be basic)

10.higher on the electromotive chart than the metal in solution
(metals higher on the electromotive chart can displace metals
lower than them)

2009-09-25 00:22:40 by gio

www.morethanalive.com We love our Berkey Water Filter. Berkeys need no electricity, no water pressure and the 2 filters that ship with them will ...

1. If the delta H of a reaction is a negative quantity, the reaction is definitely
a. endothermic
b. unstable
c. exothermic
d. reversible

2.Which of the following is a mixture
a. water
b. wine
c. silver
d aluminum oxide

3. Name the most active non-metal in period 3
a. Na
b. Cl
c. Ar
d. S

4. where in a periodic series do you find strong base formers?
a. left
b. right
c. middle
d. inert gases

5. The process of separating components of a mixture by making use of the difference in their boiling points is called
a. destructive distillation
b. displacement
c. fractional distillation
d. filtration

6. the abnormally high boiling point of water in comparison to similar compounds is due primarily to
a. van Der waals forces
b. polar covalent bonding
c. dipole insulation
d. hydrogen bonding

7. a metallic oxide placed in water would most likely yield a(n)
a. acid
b. base
c. metallic anhydride
d. base anhydride

8. a solution can be both
a. dilute and concentrated
b. saturated and dilute
c. saturated and unsaturated
d. supersaturated and saturated

9. a salt derived from a strong base and a weak acid will undergo hydrolysis and give a solution that will be
a. basic
b. acid
c. neutral
d. volatile

10. for a metal atom to replace another king of metallic ion in a solution, the metal atom must be
a. a good oxidizing agent
b. higher on the electromotive chart than the metal in solution
c. lower on the electromotive chart than the metal in solution
d. equal in activity to the metal in solution

2009-09-25 03:53:01 by gio

Price: $40.24 $26.50

Filter Type: Carbon Block
Actual Size: 8-1/2-Inches (length) x 2-Inches (diameter)
Works with the following models: General Electric GQSL55F, General Electric GXSL55F