Determine the oxidation states for the elements in the following reactions. Label which elements are gaining electrons and which elements are losing electrons. Include the number of electrons gained or lost with each element. Identify the oxidizing agent and the reducing agent in each reaction. Zn+2H ---> 2Zn+H^2

P^4+6Br^2 ---> 4PBr^3

CH^4+2O^2 ---> CO^2+2H^2O​

Noble gases are the most reactive elements on the periodic table. a. true b. false

Match the following vocabulary terms to their definitions. 1. amount of energy required to change 1 gram of material from the solid to the liquid state at its melting point 2. a measure of the kinetic energy of the particles of a substance 3. the amount of heat energy required to raise the temperature of 1 gram of liquid water from 14.5°c to 15.5°c 4. amount of energy required to change 1 gram of material from the liquid to the gaseous state at its boiling point 5. the amount of energy required to change 1 gram of a substance 1°c a. temperature b. latent heat of vaporization c. latent heat of fusion d. calorie e. specific heat

If 15 drops of ethanol from a medical dropper weight 0.60g, how many drops does it takes from a dropper to dispense 1.0ml of ethanol? the density of ethanol is 0.80g/ml