How many atoms of hydrogen are represented by the formula:
a) 1
b) 4
c) 8
d) 28

What are the theoretical properties of a gas at a temperature of 0 kelvin?

What are the starting materials for nuclear fission? two small nuclei two large nuclei a neutron and a large nucleus a neutron and a small nucleus

Two point charges are separated by a certain distance. how does the strength of the electric field produced by the first charge, at the position of the second charge, change if the second charge is doubled? a. the field does not change b. the field strength decreases by half. c. the field strength doubles d. the field strength quadruples