When the supply of oxygen is limited, iron metal reacts with oxygen to produce a mixture of and . in a certain experiment, 20.00 g iron metal was reacted with 11.55 g oxygen gas. after the experiment, the iron was totally consumed, and 3.25 g oxygen gas remained. calculate the amounts of and formed in this experiment. mass of = g

Infrared rays have a shorter wavelength than question 11 options: x-rays. ultraviolet rays. radio waves. gamma rays.

Would it be correct to say the doppler effect is the apparent change in the speed of a wave due to the motion of the source? be sure to fully explain your position using at least 3 complete content related sentences.

1. explain how you calculate the net force in any direction on the box. 2. suppose an upward force of 15n is added to the box. what will be the net vertical force on the box? 3. what force could be applied to the box to make the net force in the horizontal direction zero? explain. 4. suppose a force of 25n to the right is added to the box. what will be the net force to the right?