What is the coefficient for titanium tetrachloride when the equation below is balanced? TiCl4 + H2O TiO2 + HCl

a. 4
b. 1
c. 2
d. 3

Several kinds of bears are found on earth. most bears are brown or black, but one type of bear, the polar bear, is white. what process led to this difference in fur color? explain your answer.

Tin has ten stable isotopes. the heaviest, 124sn, makes up 5.80% of naturally occuring tin atoms. how many atoms of 124sn are present in 82.0 g of naturally occurring tin? what is the total mass of the 124sn atoms in this sample?

How many molecules are in 6.0 moles of methane