Question: The reaction Na+ Br2 → NaBr should give 0.81 moles of sodium bromide, but only 31 g sodium bromide was collected.
a. Balance the equation.
b. What was the percent yield of sodium bromide?

Using the periodic table, complete the table to describe each atom. type in your answers

Use the drop-down menus to answer each question. which runner finished the 100 m race in the least amount of time? which runner stopped running for a few seconds during the race? at what distance did anastasia overtake chloe in the race?

What happens to the concentration of hydronium ions as the ph of a solution increases? a. hydronium ion concentration stays the same b. hydronium ion concentration decreases c. hydronium ion concentration increases