CHEM 1009 Ch. 1 Practice Exam Questions And Correct Answers

Mass (SI unit) - correct answers kilogram (kg) Length (SI unit) - correct answers meter (m) Temperature (SI unit) - correct answers Kelvin (K) Amount of substance (SI unit) - correct answers mole (mol) Time (SI unit) - correct answers Second Volume (SI unit) - correct answers cubic meter (m^3) Volume (metric system) - correct answers liter (L) Mass (metric system) - correct answers gram (g) Temperature (metric system) - correct answers Celsius (°C) Water Freezes (Fahrenheit) - correct answers 32° Normal body temperature (Fahrenheit) - correct answers 98.6° Water boils (Fahrenheit) - correct answers 212° Water freezes (Celsius) - correct answers 0° Normal body temperature (Celsius) - correct answers 37.0° Water boils (Celsius) - correct answers 100° Water freezes (Kelvin) - correct answers 273° Normal body temperature (Kelvin) - correct answers 310° Water boils (Kelvin) - correct answers 373° Area (derived unit) - correct answers m^2 Volume (derived unit) - correct answers m^3 Density (derived unit) - correct answers kg/m^3 Speed (derived unit) - correct answers m/s Acceleration (derived unit) - correct answers m/s^2 Force (derived unit) - correct answers Newton (kg•m/s^2) Pressure (derived unit) - correct answers Kg/ (m•s^2) Pascal, pa Energy (derived unit) - correct answers (Kg•m^2)/S^2 Joule, J Mass number (letter representation) - correct answers A Atomic number (letter representation) - correct answers Z Symbol of atom (letter representation) - correct answers X Metals - correct answers Elements that tend to lose electrons during chemical change forming positive ions Nonmetals - correct answers Elements tend to gain electrons during chemical change, forming negative ions Metalloids - correct answers have properties intermediate between metals and nonmetals Properties of metals - correct answers -high thermal & electrical conductivities -High malleability & ductility -Metallic Luster -Solid at room temperature Properties of nonmetals - correct answers -Brittle -Powdery solids/ gases -Opposite of metal properties Cations - correct answers The electron/proton attraction has increased, so size decreases Anions - correct answers The electron/proton attraction has decreased