1) 1.644 kg Express your answer using three significant figures.

2) 74.2587 L
Express your answer using three significant figures.

3) 0.00268756 cm
Express your answer using three significant figures.

4) 8907 m
Express your answer using three significant figures.

What are the chemical names of these compounds? ke: mg3n2: reset next

How many molecules are in 6.0 moles of methane

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.)