Reviewing for a test - need an answer and explanation.

base your answer to the following question on the information below.
the reaction between aluminum and an aqueous solution of gold (i) sulfate is represented by the unbalanced equation below.

al (s) + au2so4 (aq) -> al2(so4)3 (aq) + au (s)

determine the total mass of au sproduced when 6.52 grams of al reacts completely with 3.58 grams of au2so4 to produce 5.95 grams of al2(so4)3.

How are elements arranged in a periodic table

Achemical reaction (also known as a chemical change) produces substances that are chemically different from the starting materials. an example of a chemical reaction is the formation of water from hydrogen and oxygen gas.in a physical change, a substance changes its physical appearance but not its chemical identity. an example of physical change is the formation of liquid water from solid water, a familiar process called melting. physically, liquid water looks very different from solid water (ice) but the chemical identity, water, is the same for both. which of following changes that affect the composition of our atmosphere involve physical changes and which involve chemical reactions? oxygen gas changes to ozone during thunderstorms carbon dioxide is produced by the combustion of gasoline in an automobile engine. when coal, oil, and natural gas are decomposed in landsills they produce methane gas. freezing rain develops when a warm air mass overrides a cold air mass. fog forms from water vapor when the temperature drops below the dew point

Write a brief passage describing a neutral atom of nitrogen-14 (n-14). describe the number of protons, neutrons, and electrons in the atom, where each type of particle is located, and how the terms atomic number, mass number, and atomic mass are related to the particles. use the periodic table to you. 14 protons and eletrons since its a neutral atom