Chemistry 1 Honors Final Exam Review Solved Correctly Questions With Solutions.

a broad generalization that explains a body of facts or phenomena - Answer-theory a testable statement - Answer-hypothesis a measure of the quantity of matter - Answer-mass a measure of the gravitational pull on matter - Answer-weight the closeness of measurements to the correct or accepted value of the quantity measured - Answeraccuracy the closeness of a set of measurements of the same quantity made in the same way - Answerprecision consists of all the digits known with certainty plus one final digit, which is somewhat uncertain or is estimated - Answer-significant figures numbers are written in the form M x 10ⁿ, where the factor M is a number greater than or equal to 1 but less than 10 and is a whole number - Answer-scientific notation states that mass is neither created nor destroyed during ordinary chemical reactions or physical changes - Answer-Law of Conservation of Mass the fact that a chemical compound contains the same elements in exactly the same proportions by mass regardless of the size of the sample or the source of the compound - Answer-Law of Definite Proportions if two or more different compounds are composed of the same two elements, then the ratio of the masses of the second element combined with a certain mass of the first element is always a ratio of small whole numbers - Answer-Law of Multiple Proportionsthe smallest particle of an element that retains the chemical properties of that element - Answeratom the short-ranged proton-neutron, proton-proton, and neutron-neutron forces that hold particles together - Answer-nuclear forces the number of protons of each atom of that element - Answer-atomic number atoms of the same element that have different masses - Answer-isotopes the total number of protons and neutrons that make up the neucleus of an isotope - Answer-mass number general term for a specific isotope of an element - Answer-nuclide 1/12 the mass of a carbon-12 atom - Answer-atomic mass unit