Matter and The Periodic Table
atomic stuctur and nuclear chemistry
bonding and chemical reactions
gases and thermochemistry
solutions
100
where is the noble gases?
What is the one all the way to the right
100
compare fission and fusion reactions.
What is Nuclear Fission: Fission is the splitting of a large atom into two or more smaller ones Nuclear Fusion:Fusion is the fusing of two or more lighter atoms into a larger one.
100
write chemical formulas of common polyatomic ions.
What is Step 1: Write the symbols (including charge) of the cation and anion, with the cation listed first. Step 2: Determine the smallest number of each kind of ion needed to give an overall charge of zero. Step 3: Write the chemical formula, using the appropriate subscripts to make the compound neutral in charge.
100
describe the postulates of kinetic molecular theory.
What is The kinetic theory of gases describes a gas as a large number of small particles (atoms or molecules), all of which are in constant, random motion
100
descibe soltions.
What is Solutions are homogeneous mixtures.
200
what is electronegativity?
What is the tendency of an atom or radical to attract electrons in the formation of an ionic bond
200
describe the characteristics of alpha, beta, and gamma radiation .
What is Alpha particles, first identified by Antoine. They have a positive electrical charge and consist of two protons and two neutrons. Beta particles, identified by Ernest. They are extremely high-speed electrons that move at the speed of light Gamma rays, identified by Marie .They are similar to X-rays, but they usually have a shorter wave length.
200
name ionic compounds containing main group.
What is •Metal + Nonmetal —> ionic compound (usually) •Metal + Polyatomic ion —> ionic compound (usually) •Nonmetal + Nonmetal —> covalent compound (usually) •Hydrogen + Nonmetal —> covalent compound (usually)
200
what are gases made up from.
What is Gases are made up of high energy molecules and atoms
200
descibe the unique role of water in chemical and biological system.
What is Hydrolysis- breaks up large molecular substances into smaller molecular substances Photosynthesis- Key component in the manufacture of starch Coolant- Keeps the body temperature of organisms at a temperature level to ensure the organism's survival Hydrostatic skeleton- For organisms that lack bony skeletons provides much needed support. Component of many crucial parts of the body such as cells and membranes.
300
what is the difference between solids, liquids, and gases?
What is gas and liquid compressible space is different. solid and liquid don't have the same flow. solid and gas have different volume.
300
express the arrangement of electons in atoms through electrons configuration and lewis valence electron dot structures.
What is Group 1 (I) (alkali metals) Group 2 (II) (alkaline earth metals) Groups 3-12 (transition metals) Group 13 (III) (boron group) Group 14 (IV) (carbon group) Group 15 (V) (pnictogens) Group 16 (VI) (chalcogens) Group 17 (VII) (halogens) Group 18 (noble gases)
300
write down the law of conservation of the mass to write and blance chemical equations.
What is 1.down the chemical formulas of all substances involved in the the reaction, separating them with an arrow. 2.Compare the number of atoms of each element on both sides of the equation, denoted by a subscript. 3.Starting with the largest compounds' elements, add whole number coefficients to both to ensure both compounds have the same number of atoms of each element. 4.Avoid balancing hydrogen and oxygen first 5.Draw a table and count up all elements on both sides of the equation. All measurements should be equal.
300
describe thermochemistry.
What is Thermochemistry is the study of the energy and heat associated with chemical reactions and/or physical transformations.
300
define ph .
What is Public Health
400
whats the entensive and intensive properties?
What is entensive is one that is additive for independent, noninteracting subsystems. intensive is the meaning of a physical property of a system that does not depend on the system size.
400
descibe the relationship between energy, frequency and wavelength of light.
What is The amount of energy is inversely related to the wavelength of the light: the shorter the wavelength, the greater the energy of each photon of the light.
400
define and use the concept of a mole.
What is :The mole is a unit of measurement used in chemistry to express amounts of a chemical substance, defined as the amount of any substance that contains as many elementary entities (e.g., atoms, molecules, ions, electrons) as there are atoms in 12 grams of pure carbon-12 (12C), the isotope of carbon with relative atomic mass 12.
400
what is calorimetry equation.
What is q = C ΔT = C ( Tf - Ti )
400
distinquish between degrees of dissociation for strong weak acids and bases.
What is A strong acid, when placed in water, will almost fully ionise/dissociate straight away, producing H+ (aq) ions from water. A weak acid will, however, only partially dissociate into ions, leaving a high percentage of unreacted molecules in the solution
500
whats the chemical and physical properties in the historical development?
What is chemical and physical properties help identify the element .
500
calculate the wavelength,frequency and the energy of the light using plancks constant and the speed of light.
What is: 6.62606896 x 10^(-34) joule seconds
500
perform stoichiometric calculations including determination of the mass relationship between reactants and products, calculation of limitinf reagents and percent yield.
What is Atoms are central to the principle of the conservation of matter.  When a change occurs, the total number of atoms within a closed system remains the same; therefore, the total mass of the system remains the same.  The reference for atomic masses is carbon-12. One atomic mass unit (amu) equals 1/12 of the mass of a carbon-12 atom.  A balanced chemical reaction represents the conservation of matter at both the atomic–molecular level and the macroscopic level by showing the relationship between the reactants and products.
500
what is the law of conservation of energy and the processes, of heat transfer.
What is The first law of thermodynamics is a version of the law of conservation of energy, adapted for thermodynamic systems. The internal energy of an isolated system is constant and energy can be transformed from one form to another, but cannot be created or destroyed. The first law is often formulated by stating that the change in the internal energy of a closed system is equal to the amount of heat supplied to the system, minus the amount of work done by the system on its surroundings.
500
distinquish between electrolytes and nonelectolytes.
What is 1) An electrolyte produces electricity. 2) A nonelectrolyte does not produce ions when dissolved in water. 3) An electrolyte produces ions when dissolved in water. 4) an electrolyte lights-up in an electrical current
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