Energy
(Chemical/Nuclear) reactions produce more energy.
Nuclear
The calcium ion shares its electron configuration with a noble gas by losing how many electrons?
A homogenous mixture has how many phases?
1
Find the molar mass of and name the following chemical compound: (NH4)3PO4
Ammonium phosphate. 149g/mol
What is the color of bromcresol green indicator in a solution with a pH value of 2.0?
yellow
Increasing the temperature of a gas (increases/decreases) the rate of dissolving.
In gases, increasing the pressure (increases/decreases) the rate of dissolving.
decreases, increases
Express 2700000 in scientific notation
2.7 x 106
Order aqueous, solid, liquid, and gas in order of increasing entropy.
solid, liquid, aqueous, gas
Write a balanced half-reaction equation for the oxidation of zinc.
Zn -> Zn+2 + 2e-
Which compound, when stirred in water, will not pass through filter paper?
NaCl, NH4S, Mg(OH)2, LiCl
Mg(OH)2
An electrolytic cell nonspontaneously uses ___ energy to produce a ____ change.
electrical, chemical
A sample of LiOH(aq) has a concentration of 0.020 M. How many significant figures are used to express the concentration of this solution?
2
An Arrhenius base must contain which polyatomic ion?
hydroxide ion (OH⁻)
A neutralization reaction will always result in what two products?
Water (H2O), and a salt (ionic compound)
List the liquids in order of weakest to strongest intermolecular forces: ethanol, water, ethanoic acid, propanone
The Kinetic Molecular Theory says that collisions between particles are elastic, meaning there's no loss of ____ energy during collisions, and energy (can/cannot) be transferred between particles.
kinetic, can
Determine the time required for a 1.00-gram sample of Hydrogen-3 to decay until 0.25 gram of the sample remains unchanged.
24.62y
Ex: diether ethyl, butanol
State the chemical formula for dimethyl ether.
CH3OCH3 / C2H6O
In a laboratory exercise to determine the volume of a mole of a gas at STP, a student determines the volume to be 2.25 liters greater than the accepted value. The percent error in the student's value is...
10.0%
State what happens to the potential energy of the water molecules as they evaporate from a sample of seawater
Increases
How much energy is absorbed when one mole of hydrogen iodide is formed?
26.5kJ
In which reaction is an atom of one element converted into an atom of another element?
transmutation
This atom is bombarded with a neutron to make Hydrogen-3 and an alpha particle.
Lithium-6