Chem v1/v2, AP V1/V2, HESI A2 Biology BEST SOLUTIONS QUESTIONS AND CORRECT ANSWERS 100%[VERIFIED]

Chem v1/v2, AP V1/V2, HESI A2 Biology BEST SOLUTIONS QUESTIONS AND CORRECT ANSWERS 100%[VERIFIED] If a Hydrogen is in a compound, what would its oxidation number be? - ANSWER +1 What is the oxidation number of any simple ion? - ANSWER The same as charge of the ion How many kilograms are in a pound? - ANSWER 0.453592 kg What is the temperature for freezing point of water in Celsius? - ANSWER 0 degrees Celsius (32°F for Fahrenheit) What is the conversion of Celsius to Fahrenheit? - ANSWER 5F=9C+160 (remember 5F because you have 5 fingers on a hand and 9C because cats have 9 lives) What is the oxidation number of an element atom? - ANSWER 0 What is the freezing point of sea water in Fahrenheit? - ANSWER -2C How many amino acids are in a dipeptide? - ANSWER 2 If Oxygen is in a compound, what would its oxidation number be? - ANSWER -2 Which of the following pH values would lemon juice likely have? - ANSWER 2 because the lower the pH value, the more acidic What is a pentose? - ANSWER A 5 carbon sugar (Pent = 5) (ose = sugar) What is the oxidation state of the Sulfur atom in Sulfuric Acid H2SO4? - ANSWER 6(each H is +1, each O is -2. All charges have to add to 0. 2+S-8=0 How many neutrons does carbon 14 have? - ANSWER 8 ( mass# - atomics # = neutrons) 14 6= 8 How many protons does Potassium have? - ANSWER 19 How many amino acids are essential for human life - ANSWER 20 amino acids Normal body temperature in °C? - ANSWER 37°C Normal body temperature in °F? - ANSWER 98.6°F Boiling point of water in °C? - ANSWER 100°C Boiling point of water in °F? - ANSWER 212°F 0°K is equal to°C? - ANSWER -273°C The term Amphoterie means? - ANSWER A substance that can act as both a base & acid What is Kelvin based around? - ANSWER Absolute zero A compound that is Hydrogen or proton donor, corrosive to metals, causes blue litmus paper to become red and becomes less acidic when mixed with a base is? - ANSWER Acid Mixture of 2 or more metals are? - ANSWER Alloys pH less than 7.0 sour/tart Formulas begin with H (Hydrogen) Proton Donor - ANSWER Acids: 3 types of radiation in nuclear chemistry? - ANSWER Alpha, Beta & Gamma Emission of Helium (He) ions in the nuclei Contains 2 protons & 2 neutrons. +2 Charge radiation particle. Can Largest be stopped by piece of paper - ANSWER Alpha radiation Type of Alloy in which another metal is dissolved in Mercury (Hg)? - ANSWER Amalgam Proteins are made up of? - ANSWER Amino acids Glycogen is what kind of starch? - ANSWER Animal Starch When an atom GAINS ONE or more electrons - ANSWER Anions (negative ion) Basic building block of a molecule? - ANSWER Atom (NOT CELL!!) Atomic mass? - ANSWER Average mass of a elements isotope Atomic #: - ANSWER # of protons in nucleus of an atom A Hydrogen or proton ACCEPTOR & has hydroxide group in the makeup of the molecule Produce -OH Bitter, slippery, conduct electricity, formulas contain -OH pH value greater than 7.0 Proton acceptor - ANSWER Base _________are Proton donors as Bases are proton acceptors - ANSWER Acids Decomposition product of a proton or neutron High speed/energy Electrons EITHER - charged electrons or + charged positrons Can be stopped by aluminum foil - ANSWER Beta radiation: What is Biochemistry? - ANSWER Study of substances & processes occurring in living things Fahrenheit is based off of? - ANSWER Body temp How does ↑ Surface area speed up chemical reactions? of contact reactions - ANSWER By ↑ areas of contact where chemical reactions can occur How do catalyst accelerate a chemical reaction? - ANSWER By reducing the amount of energy needed for a reaction to occur What does COOH symbolize? - ANSWER Carboxyl group Which of the following is not a solution type? - ANSWER Catalyst Define Catalyst. - ANSWER Substance that speeds up a chemical reaction. 1