What is the most abundant element and has only one letter in its chemical symbol? A)nitrogen
B)hydrogen
C)O oxygen

Chemistry worksheet - i am not sure what they are asking for exactly?

Need ! asap will mark 10 pts using the room temperature line (orange line) and your periodic table, make lists that identify the state of matter (gas, liquid, or solid) in which each element you plotted exists at room temperature. explain your answers

Use the half-reactions of the reaction au(oh)3 + hi -> au +i2 +h2o to answer the questions