An adult male pig's urine contains a chemical substance that accelerates the onset of puberty in female pigs. what is this substance called?

Which of the following is a conclusion that resulted from ernest rutherford’s scattering experiment? (will mark brainliest) a. the nucleus is negatively charged b. the atom is a dense solid and is indivisible c. the mass is conserved when atoms react chemically d. the nucleus is very small and the atom is mostly empty space

State one important difference between a physical change and a chemical change?

What happens in the particles of a gas when the gas is compressed