herman yeung - hkdse chemistry chapter 4-6 (acid & alkali 酸與鹼) - alkali & base 鹼與鹽基 Published 5 years ago • 14K plays • Length 9:01 Download video MP4 Download video MP3 Similar videos 6:12 herman yeung - hkdse chemistry chapter 4-16 (acid & alkali 酸與鹼) - strong, weak, conc, dilute 強弱濃稀 7:59 herman yeung - hkdse chemistry chapter 4-5 (acid & alkali 酸與鹼) - acidic gas 酸性氣體
