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Which of the following is a physiological role of growth hormone and its superfamily?

Which ions are spectator ions in the formation of a precipitate of AgCl via combining aqueous solutions of CoCl2 and AgNO3?

What is the electron configuration of the product of two-electron oxidation of the element germanium, Ge?  

When the following equation is balanced, the coefficients are __________.  

As we have discussed, Bronsted acid/base reactions can, in principle, go in either direction. For the Bronsted acid/base reaction below, decide whether you can use nitrous acid to successfully protonate hydrogen phosphate, or if the reverse reaction is more likely.

Rank the following aqueous environments A, B and C in terms INCREASING concentration of hydronium ion, [H3O+].

Methane is the main component of natural gas.  Its molecular formula is CH4, and its condensed formula is also CH4, i.e., it has a central carbon atom bonded to four hydrogen atoms What molecular shape does methane have, and is it a polar or nonpolar molecule?

Sulfuric acid is an important catalyst in many industrial chemical reactions, an example is shown below where it acts as a Bronsted acid in a reaction with isobutene. All acid/base reactions are, in principle, reversible. Identify the Bronsted acid and the Bronsted base for the REVERSE reaction.  

Give the percent yield when 28.16 g of CO2 are formed from the reaction of 4.000 moles of C8H18 with 4.000 moles of O2.                         2 C8H18 + 25 O2 → 16 CO2 + 18 H2O

Below is an atomic-scale representation of a material that contains oxygen (blue) and silicon (red) atoms. Based on this representation, would you expect this material to be a solid, liquid or gas?