To eight significant figures, avogadro's constant is 6.0221367*1023mol-1. which of the following choices demonstrates correct rounding?

Solutions of aluminum nitrate and sodium sulfate react to form sodium nitrate and aluminum sulfate. Classify this reaction.

What's 213Bi after undergoing alpha decay

You could add solid KCl to the solution to precipitate out AgCl (s). What mass of KCl is needed to precipitate the silver ions from 12.0 mL of 0.160 M AgNO3 solution? Express your answer with the appropriate units.

497.680 to the nearest gram (1 g)

Select the correct responses to the questions from the drop-down menus. Which wind blows cool air inland during the day? Which wind blows cool air toward the sea at night? Which winds blow steadily from specific directions and over long distances?

3.88 x 10^-6 mol / g*cm^2 = mol / kg*m^2

Review the types of elements that create ionic bonds as well as the types of elements that create covalent bonds. • N2 • CCl4 • SiO2 • AlCl3 • CaCl2 • LiBr

2. What type of bond holds together nitrogen atoms? a. Single Bond b. Double Bond c. Triple Bond d. no bonds hold nitrogen together

Which acid-base pair will always undergo a reaction that produces a neutral solution? answer?

A chemical reaction is carried out in a closed container. The energy absorbed by the chemical reaction is 50 kJ. What is the energy liberated from the air or the walls of the container? A) 50 kJ B) 75 kJ C) 25 kJ D) 100 kJ