Which list of elements consist of a metal, a metalloid and a nonmetal? (1) Li, Na, Rb (2) Cr, Mo, W (3) Sn, Si, C (4) O, S, Te

If 56 grams of notrogen are used up by the reaction, how many grams of amonia will be produced? 1N2+3H2--> 2NH3

A gas mixture used for anesthesia contains 2.83 mol oxygen (O2), and 8.41 mol of nitrous oxide (N2O). The total pressure of the mixture is 192 kPa. What is the partial pressure of N2O? Report your answer with three significant figures.

Enough of a monoprotic acid is dissolved in water to produce a 0.0136 M solution. The pH of the resulting solution is 2.45. Calculate the Ka for the acid.

Which element, when combined with chlorine would most likely form an ionic compound? potassium carbon phosphorus chlorine

if two gases of different mass are inside containers and the particles of both gaes have the same average molecular speed the gases must

Copper (cu) is a transition element used in the making of coins. calculate the mass in grams of 0.0420

In 1864, the Solvay process was developed to make soda ash. One step in the process is represented by the balanced equation below.

A chemist must prepare of aqueous potassium permanganate working solution. He'll do this by pouring out some aqueous potassium permanganate stock solution into a graduated cylinder and diluting it with distilled water.

What is the best name for the molecule below? a compound with 10 total carbons with a double bond and the rest single bonds.

What Word means the gradual change and build up of organisms in an enviroment