Answer:
A. because there both high pitched voice and low pitched ( girls have sweet, shrill ,high pitched good voice ) where as boys have horase ,low pitched medium voice )
2Ag2S + 2H2O—>4Ag+2H2S+O2
The reactants are silver sulphide (Ag2s) and water (H2O)
The correct method would be multiplying the speed of light by the time it takes to travel from the moon to Earth. This is because:
S=So+V*t
In which:
S= space
So= space at the start (origin)
V=speed or velocity
t=time
By multiplying miles/second by seconds you get miles as a result.
Molar mass of NaOH = 39.997 g/mol
39.997 g ---------- 6.02x10²³ molecules
g --------------- 2.30x10²² molecules
mass = 2.30x 10²² * 39.997 / 6.02x10²³
mass = 9x199^24 / 6.02x10²³
mass = 15.280 g
hope this helps!
Question Answer
How many moles are present in 34 grams of Cu(OH)2?
34 grams = 0.35 moles
