Aluminum reacts with potassium bromide to produce aluminum bromide (AIBr 3) and potassium. Write and balance the equation, and calculate showing all work the number of moles of potassium bromide required to react with 0.87 moles of Al.​

The diagram shows the structures of horse and cat forelimbs. what does the diagram suggest about the evolutionary relationship between these two mammals? a. they have homologous structures, indicating a common ancestor. b. they have analogous structures, indicating a common ancestor. c. they have homologous structures, indicating that they do not have a common ancestor. d. they have analogous structures, indicating that they do not have a common ancestor.

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 )

How does a hydroelectric power plant converts energy into energy.