Reactions
What do you call a reaction that has a single compound as the reactant & several elements or compounds as products?
decomposition reaction
An acid ________ a H+ ion and a base _______ a H+ ion
donates; accepts
Name 2 units of measurement for pressure
atm (atmosphere)
kPa (kilo Pascals)
mm Hg
torr
What is the measure of the disorder of a system?
What is the difference between kinetic and potential energy?
kinetic- energy of motion
potential- energy that is stored
Combustion is defined as a chemical reaction where a substance reacts with what?
oxygen gas
Name the acid: H2SO4
sulfuric acid
T/F Pressure affects the solubility of liquids and solids
False- pressure only affects the solubility of gases
Which state of matter has the highest entropy?
gas
What is the formula for work?
the force applied to an object x the distance it travels
A complete combustion reaction produces what 2 substances?
CO2 + H2O
Name 2/3 main properties of acids
1) taste sour
2) are covalent compounds that conduct electricity when added to water
3) turn blue litmus paper red
increases
What is the point at which the forward and reverse reactions in a chemical equation have reached equal reaction rates?
What is the first law of thermodynamics?
energy cannot be created or destroyed
The atomic mass (or molecular mass) in grams will give the mass of what?
1 mole of that atom or molecule
Name 2/3 main properties of bases
1) taste bitter
2) feel slippery when dissolved in water
3) turn red litmus paper blue
When a reaction is exothermic, will energy be thought of as a product or reactant in the reaction equation?
product
A catalyst speeds up a reaction by lowering what?
activation energy
The rate of many chemical reactions doubles for every ____ degrees C increase in temperature
10
How many grams are in 1 amu (atomic mass unit)?
1.66 x 10-24 g
Name the acid: C2H4O2
acetic acid
The pressure of an ideal gas depends on the ________
of that gas.
a) identity b) temperature c) quantity
c) quantity
Name a factor that can increase the reaction rate of a chemical reaction
1) increasing temperature
2) increasing concentration
3) increasing surface area
What is Avogadro's number?
6.02 x 1023