1) ___ is the branch of science dealing with the structure, composition, properties and reactive characteristics of matter a) Chemistry b) Physics c) Biology d) Astronomy e) Biochemistry f) Themodynamics 2) How much matter a body has a) Matter b) Volume c) Mass 3) The basic building block of chemistry a) Quark b) Molecule c) Electron d) Proton e) Neutron f) Atom 4) The smallest unit into which matter can be divided without the release of energy a) Atom b) Molecule c) Electron d) Proton e) Neutron f) Quark 5) The smallest unit of matter that has the characteristic properties of a chemical element. a) Molecule b) Atom c) Electron d) Proton e) Neutron f) Quark 6) This subatomic particle has a negative charge. a) Atom b) Molecule c) Electron d) Proton e) Neutron f) Quark 7) This subatomic particle has a positive charge. a) Atom b) Molecule c) Electron d) Proton e) Neutron f) Quark 8) This subatomic particle has a no charge. a) Atom b) Molecule c) Electron d) Proton e) Neutron f) Quark 9) Elements are defined by the number of protons they possess. a) True b) False 10) There are 121 known elements a) True b) False 11) A substance is pure when just ONE type of atom is present? a) True b) False 12) When two or more atoms come together, they create a molecule a) True b) False 13) At normal temperatures (0° to 100°C) water is lquid a) False b) True 14) When going above 100°C, water is a solid. a) True b) False 15) When going below 0°C, water is a gas. a) True b) False 16) Adding energy to a particle makes it vibrate, then allowing a chemical change a) True b) False 17) When water reaches 100°C, this is known as BOILING POINT a) True b) False 18) This point is reached when water is 0°C a) Freezing point b) Boiling point c) Water point d) Diffusion e) Distillation point f) There is no way water reaches 0°C 19) The physical change of state from Solid to Liquid a) Melting b) Vaporization c) Distillation d) Condensation e) Freezing f) Overheating 20) The physical change of state from Liquid to Solid a) Melting b) Vaporization c) Distillation d) Condensation e) Freezing f) Overheating 21) The physical change of state from Gas to Liquid a) Melting b) Vaporization c) Distillation d) Condensation e) Freezing f) Overheating 22) They have a fixed volume and shape. a) Liquid b) Solid c) Gas d) Plasma 23) Their atoms vibrate but can't change location a) Liquid b) Solid c) Gas d) Plasma 24) Their particles are packed very closely together in a fixed and regular pattern. a) Liquid b) Solid c) Gas d) Plasma 25) Fixed volume but adopt the shape of the container. a) Liquid b) Solid c) Gas d) Plasma 26) Their particles move and slide past each other. They flow freely. a) Liquid b) Solid c) Gas d) Plasma 27) No fixed volue and can adopt the shape of the container. a) Liquid b) Solid c) Gas d) Plasma 28) There is a lot of space in between their particles a) Liquid b) Solid c) Gas d) Plasma 29) Their particles are far apart and move randomly and quickly. a) Liquid b) Solid c) Gas d) Plasma 30) Melting is an example of physical change. a) True b) False 31) Physical changes can be reversible or irreversible a) True b) False 32) A change can happen backward, it can be reversed. a) Reversible b) Irreversible 33) Rusting is an example of chemical change. a) False b) True 34) A chemical reaction is a process that occurs when one or more substances are changed into one or more new substances a) False b) True 35) Two or more types of atoms that have the same atomic number (protons) but different number of neutrons. a) Atoms b) Isotopes c) Nucleon member d) Electronic number e) Ions 36) An atom that gives away electrons to other atoms a) Cation b) Ion c) Anion 37) An atom that recieves electrons from other atoms a) Cation b) Ion c) Anion 38) This scientist was the one who arranged the elements in a table according to the chemical and physical properties a) Dimitri Mendeleiev b) Isaac Newton c) Edwin Schrödinger d) Neils Bohr 39) This is the element that is located in the GROUP I and PERIOD 2 a) Li b) H c) Na d) K e) Cs f) Fr 40) Element located in the FAMILY 5, PERIOD 4 a) N b) P c) As d) Sb e) Bi f) Uup 41) Solution = Solvent + _____________ a) Solute b) Mixture c) Dissolution d) Solvent e) Solution 42) In this kind of mixtures you can distinguish between their components a) Homogeneous mixtures b) Heterogeneous mixtures 43) In this kind of mixtures you cannot distinguish between their components a) Homogeneous mixtures b) Heterogeneous mixtures 44) This was an ancient greek philosopher who suggested atoms were solid, indestructible, always in motion and there was an infinite number of them. a) Democritus b) Dalton c) Thomson d) Rutherford e) Bohr f) Schrödinger 45) This scientist proposed a way to distinguish between the known elements at the time (~1800) a) Democritus b) Dalton c) Thomson d) Rutherford e) Bohr f) Schrödinger 46) This scientist mention the elements are made of extremely small particles called atoms. a) Democritus b) Dalton c) Thomson d) Rutherford e) Bohr f) Schrödinger 47) He suggested a model of the atom in which electrons were seen as embedded in the positive charge like raisins in a pudding.  a) Democritus b) Dalton c) Thomson d) Rutherford e) Bohr f) Schrödinger 48) He suggested a model of the atom in which electrons were place out of the nucleus and cycling around it. a) Democritus b) Dalton c) Thomson d) Rutherford e) Bohr f) Schrödinger 49) He suggested electrons were placed in orbit around the nucleus, according to different energy levels. a) Democritus b) Dalton c) Thomson d) Rutherford e) Bohr f) Schrödinger 50) His model suggests electrons move randomly in an electron cloud. a) Democritus b) Dalton c) Thomson d) Rutherford e) Bohr f) Schrödinger 51) This is not a type of chemical reaction a) Combination b) Decomposition c) Combustion d) Single replacement e) Double replacement f) Thermocyclical replacement 52) AB ----> A + B a) Combination b) Decomposition c) Combustion d) Single replacement e) Double replacement f) Thermocyclical replacement 53) A + BC ----> AC + B a) Combination b) Decomposition c) Combustion d) Single replacement e) Double replacement f) Thermocyclical replacement 54) AB + CD ----> AC + BD a) Combination b) Decomposition c) Combustion d) Single replacement e) Double replacement f) Thermocyclical replacement 55) This is a type of combination reaction in which Oxygen is involved. a) Combination b) Decomposition c) Combustion d) Single replacement e) Double replacement f) Thermocyclical replacement 56) ____ H2 + O2 ----> 2H2O a) 2 b) 3 c) 1 d) 4 e) 6 f) 5 57) N2 + __ H2 -----> ____ NH3 a) 3 2 b) 2 3 c) 3 3 d) 2 2 e) 1 3 f) 2 1 58) A substance with pH = 7 a) Acid b) Alkali c) Base d) Neutral 59) A substance with pH = 6 a) Acid b) Alkali c) Base d) Neutral 60) A substance with pH = 1 a) Acid b) Alkali c) Base d) Neutral 61) pH ranges from 0 to 6 a) Acid b) Alkali c) Base d) Neutral 62) pH ranges from 8 to 14 a) Acid b) Alkali c) Neutral 63) This substances have a sour taste (when edible) a) Acid b) Alkali c) Neutral 64) This substances are highly corrosive a) Acid b) Alkali c) Neutral 65) This substances can neutralise a base. a) Acid b) Alkali c) Neutral 66) This substances are bitter (when edible) a) Acid b) Alkali/Bases c) Neutral 67) This substances change litmus indicator to color blue a) Acid b) Alkali/Bases c) Neutral 68) This substances change litmus indicator to color red a) Acids b) Alkali/Bases c) Neutral 69) Neutralization occurs when an acid and a base mix together a) True b) False 70) The result of a neutralization is the loss of properties of both, acids and bases a) True b) False 71) The result of a neutralization is the production of a SALT + WATER + CO2 a) True b) False

Restart Science 9°

by
Print
Embed

Leaderboard

Visual style

Options

Switch template

Continue editing: ?