Why is energy required for the heating or boiling process?

1. When iron is oxidized, what is reduced?

Why is alchemy not considered a science

The reaction of glucose, c6h12o6, with oxygen produces carbon dioxide and water. what is the sum of the coefficients in the balanced equation?

What are the spectator ions in the reaction between aqueous nitric acid and ammonia?

If two nonmetals with the same electronegativity bond, what type of bond will form? A. Metallic bond B. Non polar ionic bond C. Ionic bond D. Non polar covalent bond

What are the forces that create electromagnetism?

The nose is an organ that acts as an airway for oxygen to enter the body. The nose also contains hairs that trap small foreign objects and stop them from entering the body. Which two systems does the nose play a role in? A. respiratory and immune B.

HBr + Mg (OH) 2 MgBr2 + H2O

What is the ability of a substance to be pulled into a wire? A malleability B ductility C conductivity D solubility

When a counterfeit detection pen is used on an authentic bill, what color does it turn? a. Pale blue b. Pale yellow c. Blue-black d. Pale pink