Atom with identical atomic numbers but different mass numbers
What is an isotope
100
Type of reaction 2 Mg (s) + O_2 (g) --> 2 MgO (s)
What is a combination reaction
100
A substance whose aqueous solutions contain ions
What is an electrolyte
100
Definition of force
What is any push or pull exerted on an object
200
Matter that can be observed without changing identity or composition (properties: boiling point, hardness, odor, density)
What is a physical property?
200
Number of protons, neutrons, and electrons the element sodium has (respectively)
What is 11, 11, 11
200
Formula weight of calcium nitrate (Ca(NO_3)_2)
What is 164.1 amu
200
CH_3COO^- soluble or insoluble
What is soluble
200
Equation to find delta E
What is E final - E initial
300
The SI unit for electric current and temperature respectively
What is ampere and Kelvin
300
The empirical formula for the compound sodium and phosphate
What is Na_3PO_4
300
Percent composition of Carbon in C_12H_22O_11
What is 42.1%
300
Precipitate that will form from the reaction of Mg(NO_3)_2 and NaOH
What is Mg(OH)_2
300
Amount of heat released when 4.50 g of methane gas is burned with constant pressure
CH_4 (g) + 2O_2 --> CO_2 (g) +2 H_2O (l) delta H=-890 kJ
What is -250 kJ
400
(6.221 cm) X (5.2 cm)=
(in the correct number of significant figures)
What is 32 cm^2
400
Name of ClO_2^-
What is chlorite ion
400
Number of moles in 5.380 g of C_6H_12O_6
What is .02989 mol
400
The oxidation number of sulfur in SCl_2
What is +2
400
Define Hess's law
What is the law that states that if a reaction is carried out in a series of steps, delta H for the overall reaction equals the sum of the enthalpy changes for the individual steps
500
The number of inches in 8.00 m
(in the correct number of significant figures)
What is 315 inches
500
The name of tetraphosphorous decasulfide
What is P_4S_10
500
Amount of NH_3 moles that can be formed with 3.0 mol of N_2 and 6.0 mol of H_2
What is 4.0 mol NH_3
500
Number of milliliters of 3.0 M H_2SO_4 needed to make 450 mL of 0.10 M H_2SO_4
What is 15 mL
500
Calculate delta H for NO (g) + O (g) --> NO_2 (g)
with the equations
NO (g) + O_3 (g) --> NO_2 (g) + O_2 delta H=-198.9 kJ
O_3 (g) --> 3/2 O_2 (g) delta H=-142.3 kJ
O_2 (g) --> 2 O (g) delta H=495.0 kJ