Draw 1.) Mono carbon tetrahydride
2.) Di Carbon hexahydride
3.) N2
4.) H2CO
5.) Monoselenium Di Fluoride
6.) Di Silicon Tetra Bromide
7.) Phosphorous tri hydride
8.) Monohydrogen monochloride
9.) Dihyrodgen Di nitride
10.) Tricarbon octachloride

This is a characteristic of the elements in the periodic table that shows a pattern. it may increase or decrease across or down the table.

As changes in energy levels of electrons increase, the frequencies of atomic line spectra they emit

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.)