How many paths of energy does a food chain follow?

A.
many

B.
one

C.
two

D.
four

Why does a red shoe appear red in daylight

Which statement about hf is true? it is zero for any compound in its standard state. it is positive when the bonds of the product store more energy than those of the reactants. it is negative when a compound forms from elements in their standard states. it is zero for any element that is in the liquid state.

What is calcium oxide+diphosphorus pentoxide--> calcium phosphate balanced