i can help you! i can help you!
yeah..this is one of those hard stochiometry problems. but nofear; my teacher told us how to do these a month ago, so i can help you :)
kk..you have to think of it like this:
CxHyOz ---> CO2 + H2O
so for CO2, you find the grams of carbon by...
(12.01 g C)...
help is hereeeee...
i think you have to first find out what the limiting reactant is. and then use that amount to see how much lithium fluoride forms.
hope this helps :biggrin:
in fear of sounding stupid...
none? because the ball travels 10 m to the wall, but then comes back 10 m. ok...so i think i get of get what brewnog was saying about the echos. thanks :smile:
my cogs are rusty.
uhhhhmmmmmm...no.
i don't think my physics teacher ever mentioned echos.
could you explain this to me?
thanks so much. 'preciate it. alottttt. :approve:
i'm doing extra problems in my textbook but one of them baffles me...
a hiker shouts toward a vertical cliff 685 m away. the echo is heard 4 s later
what is the speed of sound of the hiker's voice in air?
i know to calculate this you do velocity=distance/time.
and i did velocity=685/4...