Which is the formula for iodine tribromide? ibr ib3 ibr3 i3br

When determining the shape of a molecule, it is important to draw a lewis dot structure first in order to see the total number a. electrons within the moleculeb. bonding and unshared pairs around central atomc. unshared pair within the molecule( i really need it )

If 90.0 grams of ethane reacted with excess chlorine,how many grams of dicarbon hexachloride would form

Amixture that has two or more substances that are spread out evenly is called a. compound b. heterogeneous c. substance d. homogeneous