When sodium is placed in water, the following chemical reaction occurs. 2Na(s) + 2H20 (1) -> 2NaOH (aq) + H2(g)
If a teacher uses a 0.500 gram sample of sodium metal for a demonstration with excess
water, how many liters of hydrogen gas would be produced at STP?

My options are -
0.171
0.243
0.718

all eukaryotic cell have mitochondria : )

35. a insulated cylinder of solid gold (k 310 kw/m-k) of radius v2 m and height 5 m is heated at one end until the temperature at each point in the cylinder is given by w(r, y, z) (30 z2)(2-(r2+ y2). determine the rate of heat flow across each horizontal disk given by z 1, z 2, and z 3, identifying which has the greatest rate of heat flow across it.

explanation: