Which of the following lists the characteristics that all matter has?

a. it has mass.
b. it has mass and takes up space.
c. it has mass and can be seen without a microscope.
d. it has mass, takes up space, and can be seen without a microscope.

Explain that newton first law, second law and third law of motion?

One of the hopes for solving the world's energy problem is to make use of the fusion reaction 21h +31h --> 42he + 10n + energy how much energy is released when 1 mol of deuterium is fused with 1 mol of tritium according to the above reaction? the masses of the atoms and the neutrons are as follows: 21h = 2.0140 amu 31h = 3.01605 amu 42he = 4.002603 amu 10n = 1.008665 amu. the speed of light is 2.9979 x 108 m/s.

The empirical formula of a compound is ch2o and its mass is 120 amu/molecule, what is its formula?