Is this equation completely balanced?
2c8h3 + 2502 - 8002 + 18h20
a. no, because the number of carbon, hydrogen & oxygen atoms on both sides of the equation are not equal.
ob. no, because the number of oxygen atoms on both sides of the equation are not equal.
o c.
yes, because all of the coefficients are in their lowest whole number ratio.
d. no, because the number of hydrogen atoms on both sides of the equation are not equal
e. yes, because the number of products is equal to the number of reactants.

Compare the horizontal displacement of the two balls as they travel to the ground. what do you observe?

Anonzero net force acts on a particle and does work. which one of the following statements is true? the kinetic energy of the particle changes, but the speed of the particle does not change. the kinetic energy of the particle does not change, but the speed of the particle does change. the kinetic energy of the particle changes, but the velocity of the particle does not change. the kinetic energy and the speed of the particle change, but the velocity of the particle does not change. the kinetic energy, speed, and velocity of the particle change.

The illuminance of a surface varies inversely with the square of its distance from the light source. if the illuminance of a surface is 120 lumens per square meter when its distance from a certain light source is 6 meters, by how many meters should the distance of the surface from the source be increased to reduce its illuminance to 30 lumens per square meter?