We did a lab separating out the components of a mixture. One of the lab questions is "The weight of naphthalene was obtained by weighing the collected solid. Was this an accurate weight of the naphthalene present in the original sample?" I don't know how to answe...
A boy walks a total distance of 210 km due North. His starting position is at 20 km and his final position is 34 km. If it takes him 3 hours and 20 minutes to make this trip, what is his total velocity? What is his speed?
if $1747.56 is including HST, what is that price without the HST?
Describe Sumerian religious practices
who are some good citizens? for example terry fox or mother teresa. i need people other than them
A 0.513 M solution of a weak base has a pH of 11.4. What is the Kb of the base?
A 0.010 M solution of aspirin, a weak monoprotic acid, has a pH of 3.3. What is the Ka of aspirin?
what precent of 3.5 is 7.2? show your work please.
is there any one out there to help me