Sulfur forms disulfide cross-links between polyisoprene chains, providing elasticity, tensile strength, and resistance to temperature changes. Carbon black is filler/additive for reinforcement but not the vulcanization agent.
Explanation:
Neutralization: Acid + Base → Salt + Water. Example: HCl + NaOH → NaCl + H₂O. It is a double displacement reaction. The pH of the resulting solution may be neutral, acidic, or basic depending on the strengths of the acid and base.
Explanation:
Chadwick (1932) produced highly penetrating neutral radiation by bombarding Be with α-particles, identified as neutrons. Reaction: ⁹Be + ⁴He → ¹²C + ¹n.
Explanation:
Ernest Rutherford discovered the atomic nucleus through his gold foil alpha-scattering experiment in 1911. He later discovered the proton in 1919 by bombarding nitrogen with alpha particles. J.J. Thomson discovered the electron, and Chadwick discovered the neutron.
No comments yet. Be the first to start the discussion!