Help please and answer A-D

A: Label each wave above as transverse or longitudinal.
B: Which wave above could be used to represent a sound wave?
C: Which wave above is used to represent an electromagnetic wave?
D: Which wave above is also a model for light waves?

Which of the following words describe the reality that the universe looks the same from various perspective

If 16.00g of hydrogen gas reacts with 126.73g of oxygen, how many grams of water are yielded? (both reactants are completely consumed in the reaction.)

Movement that is like a t a type of wave that transfers energy where the particles in the medium move in a circle motion while the energy travels left or right. a type of wave that transfers energy where the particles in the medium move perpendicular to the direction in which the energy is traveling. transfers energy from one location to another a type of wave that transfers energy where the particles in the medium move parallel to the direction in which the energy is traveling. movement that is back and forth, like an equal sign = 1. wave 2. parallel movement 3. perpendicular movement 4. transverse wave 5. longitudinal wave 6. surface wave