Kepler's laws follow which law discovered by sir isaac newton? a. universal law of friction b. universal gravitational law c. universal laws of attraction d. universal law of force

Schrodinger and heisenberg developed an alternate theory about atomic nature that contradicted some of bohr's model of the atom. how do changes resulting from new technology and evidence affect the reputation of the atomic theory?

One nanometer is equal to how many meters?

What is a substance? a. a physical property of matter b. a chemical property of matter c. an element or compound that cannot be physically separated d. characteristics used to tell the difference between mixtures