Asample of gold (au) has a mass of 35.12 g..
a. calculate the number of moles of gold (au) in the sample. .
b. calculate the number of atoms of gold (au) in the sample

9. write the chemical equation for the following word equations. include symbols for physical states in the equation. a. solid zinc sulfide + oxygen gas -> solid zinc oxide + sulfur dioxide gas b. aqueous hydrochloric acid + aqueous barium hydroxide -> aqueous barium chloride + water

Identify a specific example for each type of technology

What is the ph of a 0.0010 m hno3? 1.0 3.0 4.0 5.0