Dry ice goes directly from the solid phase to the gas phase. What phase change is being represented? *
O Solid
O Sublimination
O Condensation
O
Freezing

Which of the following best supports the concept that genetic information is passed on to offspring from both of their parents, not just one?

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.)

Helium decays to form lithium. which equation correctly describes this decay?