2no(g) + o2 (g) --> 2no2
how many moles of o2 are required to produce 46.0 g no2?
a. 0.500 mol
b. 0.250 mol
c. 1.00 mol
d. 8.00 mol

Explain what happens at the saturation point when adding salt to water at room temperature.

In salt water solution,the salt is the blank

Asample of tin (ii) chloride has a mass of 0.49 g. after heating, it has a mass of 0.41 g.  what is the percent by mass of water in the hydrate?   %