hi. i have a 25 item scavenger hunt for chemistry. i found most of the items accept a few. it would be great if you guys could help me out. thanks!!
3. the mass of sodium chloride that would be produced when 2.3 g of sodium reacts with .56 L of chlrine gas. Assume STP and 100% yield. Calculations and balanced equation required.
16. a hydrocarbon with molecular weight > 100. common name, chemical name, chemical formula.
18. an amount of water whose temperature would change 15 degrees C when it absorbed 630 calories of heat energy. calculations required (am i using a formula with vaporization? or something along those lines)