What is the molarity of a solution made by dissolving 21.2 g of sodium hydroxide (naoh) in enough water to make 7.92 l of solution?

molar mass na: 22.99 g/mol
molar mass o: 16.00 g/mol
molar mass h: 1.008 g/mol

Match the following vocabulary terms to their definitions. 1. amount of energy required to change 1 gram of material from the solid to the liquid state at its melting point 2. a measure of the kinetic energy of the particles of a substance 3. the amount of heat energy required to raise the temperature of 1 gram of liquid water from 14.5°c to 15.5°c 4. amount of energy required to change 1 gram of material from the liquid to the gaseous state at its boiling point 5. the amount of energy required to change 1 gram of a substance 1°c a. temperature b. latent heat of vaporization c. latent heat of fusion d. calorie e. specific heat

Suppose the universe were completely empty except for one object-a solid sphere moving through space of 100 km/s. what sort of path would the object be moving in? explain your answer

Classify this reaction: 2al+n2-> aln.