The energy required to remove an electron from an atom is known as this
What is ionization energy?
100
Al + O2 → Al2O3
When the equation above is correctly balanced, the coefficient on Al is:
What is four?
100
The name for a substance whose water solution does not conduct an electric current
What is a non-electrolyte?
100
Heat flows from a material at what type of temperature (high or low) to a material at (high or low) temperature
What are high and low?
200
The charge and mass number of a neutron are:
A) charge = 0, Mass number = 1
B) charge = +1, Mass number = 0
C) charge = +1, Mass number = 1
D) charge = -1, Mass number = 0
What is B?
200
This is the correct electron configuration notation for the element nitrogen, (N, atomic # 7)?
What is 1s2 2s2 2p3?
200
This is the type of reaction for the following chemical equation:
2 AgNO3 + Ni --> Ni(NO3)2 + 2 Ag
What is single replacement or single displacement?
200
On the Celsius scale, a temperature of 317 Kelvins would have this value
What is 44 degrees Celsius?
200
Catalysts increase the rate of a chemical reaction by these means
What is lowers activation energy?
300
This is the neutron:proton ratio for nitrogen-14 (need correct reduction).
What is 1:1?
300
This element has the noble-gas notation [Ne]3s23p5?
What is chlorine?
300
The mass of two moles of propane gas, C3H8
What is 88 grams?
300
Standard Pressure is equal to these following values (may be more than one)
A) 273 kPa
B) 1 atm
C) 1 torr
D) 101.3 kPa
E) 760 atm
F) 760 torr
What are B, D, and F? OR What are 1 atm, 101.3 kPa, and 760 torr?
300
The following phase changes involve the addition (absorption) of heat (may be more than one answer)
condensation
freezing
vaporization
melting
What are vaporization AND melting?
400
The number of electrons, neutrons and protons found in an atom of carbon-14 (atomic number 6)
What are 6 electrons, 8 neutrons, and 6 protons?
400
As one moves from left to right ( → ) within a period across the periodic table, the atomic radius of the elements encountered tends to do this
What is decrease?
400
The number of molecules contained in 3 moles of water H2O (Significant Figures!!)
What are 2 x 10^24 molecules?
400
At a pressure of 5.0 atmospheres, a sample of gas occupies 40. liters. What volume will the same sample occupy at 1.0 atmosphere.(sig figs!)
What is 200 liters?
400
When the pressure is decreased on the following system at equilibrium:
3 H2(g) + N2(g) <--> 2 NH3(g)
The equilibrium shift to this side of the equation.
What is towards reactants or left side?
500
(Unknown Isotope name) - 27
Mass number is this ...
Atomic number is this...
# of Protons is this
# of Neutrons is this...
13 Electrons
What are..aluminum-27
mass number is 27
atomic number is 13
13 protons
14 neutrons
13 electrons?
500
Of the following elements, this would have the largest ionization energy.
Cesium (Cs, atomic #55)
Sodium (Na, atomic #11)
Potassium (K, atomic #19)
Hydrogen (H, atomic #1)
What is hydrogen?
500
C2H2 + O2 → CO2 + H2O
When the equation above is correctly balanced, the coefficient on O2 is:
What is 5?
500
The concentration of the following solution in units of molarity, M, moles per liter (correct sig figs!and correct pronounciation!):
34 grams of ammonia, NH3, is dissolved in 4000 mL of solution
What is 0.5 M (molar) NaOH?
500
#
The specific heat of aluminum is 0.90 J/g·°C. This much energy is required to raise the temperature of 10 grams of aluminum from 10°C to 20°C
(correct sig figs and units!)