The table shows the properties of some organic compounds.

Compound A Compound B
Has a hydroxyl group Has an oxygen atom bonded between two carbon atoms

Which statement best identifies compounds A and B?
Compound A is an ether and Compound B is an alcohol.
Compound A is an alcohol and Compound B is an ether.
Compound A is a hydrocarbon and Compound B is an amine.
Compound A is an amine and Compound B is a hydrocarbon.

Most materials are not magnetic because their magnetism has worn off. their magnetic domains are arranged randomly. they lack magnetic fields. earth’s heat has destroyed their magnetism.

Chemistry worksheet - i am not sure what they are asking for exactly?

For a research project, a student decided to test the effect of the lead(ii) ion (pb2+) on the ability of salmon eggs to hatch. this ion was obtainable from the water‐soluble salt, lead(ii) nitrate, which the student decided to make by the following reaction. pbo(s) + 2 hno3(aq) → pb(no3)2(aq) + h2o losses of product for various reasons were expected, and a yield of 86.0% was expected. in order to have 5.00 g of product at this yield, how many grams of pbo should be reacted? (assume that sufficient nitric acid, hno3, would be used.)