Geas - module11
Card Set Information
Geas - module11
"When amp is multiplied with volts, resulting unit is"
Most common source of energy today
When water vapor condenses
Surrounding becomes warm
Heat transfer in liquids due to different densities
"If the velocity of a circular motion is doubled, the force becomes "
Four times as great
What are primary colors?
colors which when combined produce white light
The ratio of the speeds of light in two different media is known as
relative index of refraction
Two electrons are allowed to be on the same orbital because they have different:
spin quantum number
Light moving through a small pinhole does not make a shadow because of____.
"If you double the mass of the cart while it is running at constant unbalanced force, the acceleration will be____."
half as much
The period of a vibrating body is related to the frequency because it is____.
The north magnetic pole of the earth is
the magnetic south pole
"According to the label, a bottle of vodka is 40%by volume concentration. This means that vodka is of 40 mL pure alcohol and____."
mixes with water to form 100 mL of vodka
"In a single covalent bond between two atoms,"
"a pair of electrons, one of each atom is shared"
"According to the Bohr model, electron loses or gains energy by____."
jumping from one allowed orbital of an atom to another
A luminous object is an object that____.
produces light of its own by any method
Adding of sodium chloride in water increases the boiling point of water because of____.
sodium chloride ions occupy space of the water surface
A concentration of 500 ppm is reported in a news article. This concentration is the same as_____.
"Today, light is considered to be____."
a small-scale phenomenon without sharp distinction between particle and wave properties
Of which of the following can only be explained by the wave model of light?
Atmospheric air is a homogeneous mixture of gases of which the most is nitrogen gas. The nitrogen is therefore the____.
Sound travels fastest in ____.
An atom radon-222 loses alpha particle for it to
Become a more stable atom of____.
"The units parts per million, percent per volume and percent per states "
Solute of the solution
"Hydrogen, with its one electron, produces line spectrum of vibrating range with____."
four color lines
"The light produced by a candle, incandescent light bulb and sun differs in____."
Different physical and chemical properties
What occur when the individual particles of a medium vibrate from side to side perpendicular to the direction in which the transverse in which the waves travel?
Isomers are compound with same
molecular formula but with different structure
What refers to a measure of radiation that considers the biological effect resulting from the radiation?
What density of water is the largest at what temperature
4 degrees C
What is the most convinient way of expressing hydronium ion concentration?
Substance that ionized completely in hydronium ions
What occur when the individual particles of a medium vibrate back and forth in the direction in which the waves travel?
What is the index of refraction of water?
Petroleum is believed to have formed mostly by anaerobic decomposition of buried.
plankton and algae
PH level is less than 7
Energy radiated by sun
We can we say that a collision is a completely inelastic collision?
When the two colliding objects stick together after impact
Compounds containing hydrogen and other element are known as:
Sound interference is needed to produce what phenomenon?
What alkali metal is usually used for x-ray apparatus because of its ability to allow x-rays to pass through with minimum absorption
What refers to a shell of high pressure produced by the motion of an object whose speed exceeds that of sound
The extent of displacement of a vibrating tuning fork is related to the resulting sound characteristic wave of ______
The number of cycles a vibrating tuning fork experiences in each second is related to the resulting sound wave characteristic of ______
A formula for a compound is given as C8H18. This is a (an)
In what group is inert gases classified?
A high-speed electron ejected from a nucleus during radioactive decay is called a (an)
The ejection of an alpha particle from a nucleus results in
a decrease in the atomic number by two
Used fuel rods from a nuclear reactor contain about
96% usable uranium and plutonium
The energy released by radioactive decay and the energy released by nuclear reactions can be traced back to the energy that isotopes acquired from
An organic compound is a compound that
"contains carbon, no matter if it was formed by a living thing or not"
"Tetraethyl lead (""ethyl"") was added to gasoline to increase the octane rating by"
decreasing the burning rate
The R in ROH represents
"a hydrocarbon group with a name ending in ""-yl"""
The OH in ROH represents
a functional group
Which of the following is not converted to blood sugar by the human body?
Fats from animals and oils from plants have the general structure of a (an)
The basic difference between a monomer of polyethylene and a monomer of polyvinyl chloride is
the replacement of a hydrogen by a chlorine
Many synthetic polymers become a problem in the environment because they
do not readily decompose and tend to accumulate
Atmospheric air is a homogeneous mixture of gases that is mostly nitrogen gas. The nitrogen is therefore (the
"A bottle of vinegar is 4% by weight, so you know that the solution contains 4 weight units of pure vinegar with"
96 weight units of water
A solid salt is insoluble in water so the strongest force must be the
Salt solutions freeze at a lower temperature than pure water because
ions get in the way of water molecules trying to form ice
Which of the following would have a pH of more than 7?
a solution of ammonia
When a solution of an acid and a base are mixed together
a salt and water are formed; they lose their acid and base properties; both are neutralized
A balanced chemical equation has
the same number of each kind of atom on both sides of the equation
"Since wood is composed of carbohydrates, you should expect what gases to exhaust from a fireplace when complete combustion takes place?"
carbon dioxide and water vapor
"Of the elements listed below, the one with the greatest electron-holding ability is"
"Of the elements listed below, the one with the greatest chemical activity is"
You know that an expected ion exchange reaction has taken place if the products include
a precipitate; a gas; water