Chemistry II F13 Final Exam

35 Questions | By Lmmurp2 | Last updated: Mar 7, 2013 | Total Attempts: 162

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1.

An example of phosphorescence would be
- A.
  
  An LED
- B.
  
  Overhead lights
- C.
  
  Glow-in-dark stars
- D.
  
  Flashlight
2.

When vinegar and baking soda are reacted, the mass of the products are
- A.
  
  More than the starting materials
- B.
  
  Less than the starting materials
- C.
  
  Same as starting materials
3.

A redox reaction shows the flow of _________.
- A.
  
  Protons
- B.
  
  Neutrons
- C.
  
  Electrons
- D.
  
  Antimatter
4.

An exothermic reaction would feel _____ to the touch.
- A.
  
  Hot
- B.
  
  Cold
- C.
  
  Fuzzy
- D.
  
  Smooth
5.

When water freezes (liquid to solid) , entropy
- A.
  
  Increases
- B.
  
  Decreases
- C.
  
  Stays the same
6.

To balance the reaction ____Fe + ___O₂ --> ___Fe₂O₃ the correct coefficients are
- A.
  
  4, 3, 2
- B.
  
  4, 2, 3
- C.
  
  3, 2, 4
- D.
  
  3, 4, 2
7.

How many N's in 4 C₃H₅(NO₃)₃
- A.
  
  1
- B.
  
  3
- C.
  
  12
- D.
  
  24
8.

In the metal activity series, Mg is ABOVE Zn. If I want a reaction to occur between Mg & Zn, the solid would have to be
- A.
  
  Mg
- B.
  
  Zn
- C.
  
  Both Mg & Zn
- D.
  
  Neither
9.

When atoms absorb energy, the electrons move to a(n) __________ state.
- A.
  
  Excited
- B.
  
  Ground
- C.
  
  Middle
10.

The smaller wavelengths of light have a ___________ energy level.
- A.
  
  Lower
- B.
  
  Higher
- C.
  
  Non-existent
11.

What happens to the temperature of a material while it boils?
- A.
  
  Increases
- B.
  
  Decreases
- C.
  
  Stays the same
- D.
  
  Takes an absolute value
12.

Reduction is when ___________ are ___________.
- A.
  
  Electrons, gained
- B.
  
  Electrons, lost
- C.
  
  Protons, gained
- D.
  
  Protons, lost
13.

To be conduction, a solution must have ions that
- A.
  
  Are electrons
- B.
  
  Are protons
- C.
  
  Can move
- D.
  
  Can glow
14.

A statement of the Kinetic Molecular Theory is that gases
- A.
  
  Are clear
- B.
  
  Are mostly odorless
- C.
  
  Move in constant rapid random motion
- D.
  
  Have no mass
15.

The dissolved salt in the ocean is an example of
- A.
  
  A distillation
- B.
  
  A filtration
- C.
  
  A solute
- D.
  
  A solvent
16.

When the amount of gas and pressure are constant, when the temperature decreases the volume of the balloon
- A.
  
  Goes up
- B.
  
  Goes down
- C.
  
  Stays constant
17.

Making sure an instrument makes exact (accurate) measurements is an example of performing a
- A.
  
  Chromatography
- B.
  
  Distillation
- C.
  
  Filtration
- D.
  
  Calibration
18.

The difference in charges on the atoms in a water molecule causes OTHER water molecules to bond through a
- A.
  
  Polar-covalent bond
- B.
  
  Covalent bond
- C.
  
  Polar bond
- D.
  
  Hydrogen bond
19.

What are 2 requirements for a combustion reaction to occur?
- A.
  
  Fuel & oxygen
- B.
  
  Fuel & hydrogens
- C.
  
  Carbon dioxide & oxygen
- D.
  
  Water & oxygen
20.

Three ways to denature proteins include:
- A.
  
  Heat, water & salt
- B.
  
  Heat, water & pectin
- C.
  
  Heat, acid & salt
- D.
  
  Heat, salt & pectin
21.

When proteins are denature, they ______________.
- A.
  
  Clump up like a glob
- B.
  
  Become cystalline
- C.
  
  Unravel
- D.
  
  Break all bonds
22.

Heat is defined as
- A.
  
  The amount of kinetic energy
- B.
  
  The amount of potential energy
- C.
  
  The amount of hotness
- D.
  
  The amount of coldness
23.

Cooking an egg in a frying pan (egg TOUCHING pan) is an example of
- A.
  
  Conduction
- B.
  
  Convection
- C.
  
  Radiation
- D.
  
  Emulisification
24.

Food coloring mixes easily with water because it is
- A.
  
  Hot
- B.
  
  Cold
- C.
  
  Hydrophobic
- D.
  
  Hydrophillic
25.

If I stick a metal skewer (stick) into a potato, the amount of cooking time required will
- A.
  
  Decrease
- B.
  
  Stay the same
- C.
  
  Increase