Examples
Give an example of a polar molecule
H2O, NH3, HBr
An organic compound must contain what?
carbon
Draw the correct Lewis diagram for hydrogen chloride
HCl
What is "energy transferred as a result of temperature difference"?
heat
What is the pH of an acidic solution? (be specific)
less than 7
Give an example of an amphoteric substance?
water
In a triple bond, how many electron pairs are shared?
three
What is concentration measured in?
molarity
What is "the heat needed to raise the temperature of 1g of a substance by 1°C"?
specific heat
Give an example of a solution that is buffered.
blood
Give an example of a buffered solution
Blood
CH3CH2CH2CH=CH2 is an example of what kind of hydrocarbon.
alkene
Name one thing that is happening in a reversible reaction
the rate of each reaction changes throughout the process, Any reaction carried out in a closed container will eventually reach equilibrium, the rate of the forward reaction is equal to the rate of the reverse reaction.
What is "a laboratory technique that uses a solution of known concentration to determine the concentration of another solution"?
titration
What property of a cola soft drink would limit your ability to test its pH using an indicator?
It is dark brown in color
Give an example of alternative energy
Wind, solar, geothermal, NOT natural gas
The fifth member of the alkane series has the formula____.
C5H12
Why do road crews put brine on the road in the winter?
The brine lowers the freezing point of the snow and ice, Salt gets in the way of water molecules and stops the water from forming ice, Below certain temperatures, the brine will not be helpful and ice will remain.
What is "a substance whose aqueous solution conducts an electric current"?
electrolyte
In the reaction HCl(aq) + KOH(aq) ⇨ KCl (aq) + H2O(l), what is the conjugate acid?
H2O(l)
Give 2 examples of units that can measure heat.
calories, kilocalories, joules NOT watts
What is the name of this compound?
ethylbenzene
When the particles of a solid gain enough kinetic energy to break their ordered arrangement and slip past one another, the solid
Melts
What is H2SO4?
Sulfuric acid
What are the products that would be expected in the neutralization reaction involving nitric acid and barium hydroxide?
Ba(NO3)2 and H2O