1. Consider that 250. mL of H2 gas was produced at a pressure of 1.0 atm and a temperature of 25oC (NOT STP conditions!). How many moles of HCl reacted? Mg(s) + 2 HCl(aq) H2 (g) + MgCl2(aq) 2. How many grams of propane (C3H8) will react with 3.29 L of O2 at 1.05 atm and -34˚C?

the answer is b & c i believe : )

i think it is true since you can test the answer and can use observations to complete it.

each  column  of the  table  is called a group. elements in a group share similar properties. groups are  read  from  top  to  bottom. metal. metalloid. nonmetal. solid. liquid. gas. fe. hg. o.  2. 3. 4. 5. 6. 7. 8. 9.  2. beryllium. 9.012. 4.  sodium. 22.990.  11. 3.  magnesium. 24.305.  12.  potassium. 39.098.  19. 4.  calcium. 40.078.  20. i guess  i  

a). in this case, dh> 0 and sd> 0. if t becomes larger, the term "-tds" will become more negative. at some point, it is possible that -dts will be more negative than the dh is positive, and the reaction will become spontaneous. this is probably the correct answer, but you should look at all of the other possibilities and make sure of that.