A.Fog in a Bottle dust particle water molecule Physical or Chemical Change? H 2 O (g) H 2 O (l)
B. Dropper Bottles KI Pb(NO 3 ) 2 2 KI (aq) + Pb(NO 3 ) 2 (aq) 2 KNO 3 (aq) + PbI 2 (s) Physical or Chemical Change?
C. Iodine I 2 (s) I 2 (g) I 2 (s) Physical or Chemical Change? deposit
D. Alka-Seltzer Physical or Chemical Change? water molecule NaHCO 3 CO 2 fizzing = effervescence
F. Talking with SF 6 N 2 = 2 x ~14 amu = 28 amu O 2 = 2 x ~16 amu = 32 amu SF 6 = 32 amu+[6 x ~19 amu] = ~146 amu He= ~4 amu He N2N2 O2O2 SF 6 air Particles with less mass vibrate faster across the vocal cords. Particles with more mass vibrate more slowly across the vocal cords. Physical or Chemical Change?
Your consent to our cookies if you continue to use this website.