Intro to Chemistry Exam 1-Graded A, Exams of Advanced Education

Download Intro to Chemistry Exam 1-Graded A and more Exams Advanced Education in PDF only on Docsity! Intro to Chemistry Exam 1-Graded A What is Matter? - correct answer-______ is anything that occupies space and has mass. What is Mass? - correct answer-____ is the amount of matter in an object; never changes What is Weight? - correct answer-_______ is the gravitational force exerted on an object; can change Define: Element - correct answer-_______ is made up of molecules/atoms of the same kind; cannot be chemically subdivided into simpler substances Define: Compound - correct answer-________ is made up of molecules/atoms of two or more kinds; can be chemically subdivided into simpler substances Define: Atom - correct answer-A/An ____ is the unit from which matter is made; limit of chemical subdivision; smallest particle of an element; composed of protons, neutrons, and electrons Define: Nucleus - correct answer-The _______ is the central core of atoms that contains protons and neutrons; has a positive(+) charge equal(=) to the number of protons Define: Electrons - correct answer-_________ move in a circular orbit around the positive(+) nucleus Define: Atomic Weight - correct answer-______ ______ is the relative weight of atoms in terms of C12; the sum of protons and neutrons Define: Gram Atomic Weight - correct answer-____ ______ ______ is the atomic weight expressed in grams Define: Molecule - correct answer-A/An ________ is the smallest unit of a compound Define: Molecular Weight - correct answer-________ ______ is the sum of the atomic weights of all the atoms forming the molecule Define: Gram Molecular Weight - correct answer-The _________ ______ is the molecular weight of a compound expressed in grams Define: Electrolyte - correct answer-A/An ___________ is a substance whose solution will conduct an electric current Define: Acid - correct answer-____ is a substance that yields hydrogen ions in solution Define: Base - correct answer-____ is a substance that yields a hydroxyl (OH-) ion in solution; substance that can accept a proton Define: Salt - correct answer-____s are compounds formed by replacing the hydrogen of an acid with a metal Define: Radical / Polyatomic Groups - correct answer-A _______ or __________ _____ is a group of elements that behave like a single element Define: Valence - correct answer-_______ is the property of an element that determines the number of hydrogen (H) atoms that its atom can combine with or displace Define: Chemistry - correct answer-_________ is the study of matter Define: Trace Elements - correct answer-_____ ________ are elements that are essential to the body but are found in minute quantities Define: Isotope - correct answer-A/An _______ is a different form of the same element; same atomic number but a different atomic weight Define: Atomic Number - correct answer-______ ______ is the number of protons in the nucleus Define: Radioisotope - correct answer-A/An ____________ is an unstable isotope Define: Periodic Table - correct answer-The ________ _____ is the arrangement of the elements in a table based on the periodic law Name the Nine(9) Element Groups - correct answer-1. Alkali Metals 2. Alkaline Earth Metals 3. Transition Metals 4. 'Other' Metals 5. Metalloids 6. Non-Metals 7. Halogens 8. Noble Gases 9. Rare Earth Elements Name Four(4) Alkali Metals - correct answer-Lithium Sodium Potassium Cu - correct answer-Cuprum F - correct answer-Flourine Fe - correct answer-Iron Iron - correct answer-Ferrum Fe - correct answer-Ferrum H - correct answer-Hydrogen He - correct answer-Helium Hg - correct answer-Mercury Mercury - correct answer-Hydrargyrum Hg - correct answer-Hydrargyrum I - correct answer-Iodine K - correct answer-Potassium Potassium - correct answer-Kalium K - correct answer-Kalium Kr - correct answer-Krypton La - correct answer-Lanthanum Li - correct answer-Lithium Mg - correct answer-Magnesium Mn - correct answer-Manganese Mo - correct answer-Molybdenum N - correct answer-Nitrogen Na - correct answer-Sodium Sodium - correct answer-Natrium Na - correct answer-Natrium Ne - correct answer-Neon Ni - correct answer-Nickel O - correct answer-Oxygen P - correct answer-Phosphorous Pb - correct answer-Lead Lead - correct answer-Plumbum Pb - correct answer-Plumbum Pt - correct answer-Platinum Ra - correct answer-Radium Rn - correct answer-Radon S - correct answer-Sulfer Sb - correct answer-Antimony Antimony - correct answer-Stibium Sb - correct answer-Stibium Se - correct answer-Selenium Si - correct answer-Silicon Sn - correct answer-Tin Tin - correct answer-Stannum Sn - correct answer-Stannum Sr - correct answer-Strontium Tl - correct answer-Thallium U - correct answer-Uranium W - correct answer-Tungsten Tungsten - correct answer-Wolfram W - correct answer-Wolfram Xe - correct answer-Xenon Zn - correct answer-Zinc