W =F triangle d cosine0. F = 25 Newton’s. Delta d = 50 meters. Theta =40.0 degrees
if the color changes, it is neutral but if it stays the same, it is an acid.
D is correct, Gamma rays have the shortest wavelength.
The ONLY way to change the volume of a sample of gas is to transfer it to a container with different volume.
Simply changing its temperature or pressure in the same jar won't do it. Any amount of gas always fills whatever container you keep it in.
Atomic mass = number of protons + number of neutrons = 4+5 = 9 amu