Akia is balancing the equation na + h2o naoh + h2. he tries to find the coefficients that will balance the equation. how could he find the correct coefficients?
a) by counting up each individual atom and make sure the atom numbers are the same in the reactants and the products
b)by counting up the total atoms and make sure the number of atoms in the reactants is the same as the number of atoms in the products
c)by counting up the total mass of each compound and make sure the reactants are more than the products
d)by counting up the mass of each atom and make sure the reactants are more than the products

Astudent is performing an experiment comparing sound and light waves. the student gathers the following data. what conclusion does the student most likely make based on this data? light waves always travel the same speed; however, the speed of sound is determined by the medium that it travels through. all sound waves always have the same energy, so the temperature of the medium does not affect wave speed. light needs to vibrate particles, so it travels fastest in tightly packed solids, while sound does not need a medium, so it travels fastest in a gas. tightly packed particles in solids slow down the light waves; however, sound waves make particles bounce into each other, so they travel faster in solids.

Sound is a disturbance that travels through a medium as a

Atank is filled with an ideal gas at 400 k and pressure of 1.00 atm . part a the tank is heated until the pressure of the gas in the tank doubles. what is the temperature of the gas?