Foundation
In the scientific method, this step involves forming an educated guess about the results of an experiment.
What is the hypothesis?
The oxidation state of carbon when it is reduced by 4.
What is -4?
This type of reaction absorbs heat.
What is an endothermic reaction?
This type of property depends on the number of solute particles in a solution, not their identity.
What is a colligative property?
The time it takes for half of an element to decay.
What is half life?
The type of change that occurs to form a new substance.
What is a chemical change?
Any number of atoms bonded to themselves will have this oxidation state.
What is 0?
This is the direction in which temperature naturally flows.
What is hot to cold?
The units used for molality.
What is moles of solute over kilograms of solvent?
The type of decay that emits a particle with 2 protons and 2 electrons.
What is alpha decay?
The type of reaction that involves one compound breaking into simpler substances.
What is a decomposition reaction?
This group of elements have +2 oxidation states in compounds.
What are alkaline earth metals/group 2?
The measure of disorder in a system.
What is entropy?
In the equation for osmotic pressure, R represents this constant.
What is the ideal gas constant?
The particle with a mass of an electron but the charge of a proton.
What is a positron?
This is the number that determines the identity of an element.
What is the atomic number?
This is referred to as the reducing agent.
What is the ion or atom that donates electrons?
The equation used to calculate heat.
What is q=mcΔT?
The definition of boiling point elevation.
What is the increase of the boiling point of a solvent when a nonvolitile solute is added?
Energy equals the mass times this value squared.
What is the speed of light?
The type of reaction involving the transfer of electrons.
What is a redox reaction?
This atom is oxidized in the decomposition of water: 2H2O→ 2H2+O2.
What is oxygen?
This thermodynamics value must be negative for a reaction to be spontaneous.
What is Gibbs free energy?
This describes a liquid that evaporates easily and has high vapor pressure at room temperature.
What is volatile?
The minimum amount of fissile material necessary to achieve a self sustaining fission chain.
What is the critical mass?