A chemical change affects on the molecular level of matter, which makes it irreversible. Combustion is a pretty good exmple. Physical changes are reversible and dont alter the formula. Hope this helped!
Answer:
Its Obviously Dinosaurs
Explanation: They died 65 million years ago
Answer: it’s b)
Explanation: that’s the only difference that is listed
Chemicals cancel each other out and produce a salt and water. A neutralization reaction my also occur
Answer:
Bohr thought that electrons orbited the nucleus in circular paths; whereas in the modern view atomic electron structure is more like 3D standing waves. Bohr built upon Rutherford's model of the atom. ... He believed that electrons moved around the nucleus in circular orbits with quantised potential and kinetic energies.
Explanation:
