In atomic mass units, what is the average atomic mass of the atoms that make up boron (B) ?

A. 2

B. 5

C. 13

D. 10.81

A chemist needs to find out how large of a container would be required to contain the products of an ammonia decomposition. If 8.91 mol H2 are produced during the reaction, how many moles of N2 are produced?

Complete each of the sentences. pH meters measure pH pH meters a source of electricity. pH meters calibration

How much is 6.10^23 in grams?

A patient comes into the hospital because she is worried about possible exposure to radiation. The doctors determine that the patient has 60 rem of exposure. What is her risk of cancer? High because her exposure is less than 100 rem.

Lead (ii) nitrate and ammonium iodide react to form lead (ii) iodide and ammonium nitrate according to the reaction pb (no3) 2 (aq) + 2nh4i (aq) ⟶pbi2 (s) + 2nh4no3 (aq) what volume of a 0.610 m nh4i solution is required to react with 229 ml of a 0.

How does planks constant work

What is true of the total mass of reactants compared to the total mass of proucts

An aqueous solution is 36% by mass silver nitrate, AgNO3, and has a density of 1.41 g/mL. What is the molality of silver nitrate in the solution?

Why Triethanolamine stearate is a polar molecule

What happens to iron oxide during decomposition