False. Most countries (not USA) use the metric system. England being one of them
8.9 g/cm3 since density equals mass/volume or m/v you just divide 89 by 10 to get 8.9
This would be silver. Silver has a density of 10.5 g/cm^3.
Hope this helps~
Atomic number is Z. Z=number of protons, so Z=11
To determine the expected pH of the resulting solution of the following substances, create a balanced chemical equation of their ionization in water:
HI
HI + H2O ---> H+ + I-
It completely dissociates into H+ and I-. Due to the presence of the Hydronium Ion, the solution is acidic.
KBr
KBr + H2O ----> HBr + KOH
The salt KBr is formed by a strong base and a weak acid, therefore, the solution it forms with water is basic.
LiOH
LiOH + H2O ----> Li+ + OH-
It dissociates completely in water, turns into Li+ and OH-. Due to the presence of Hydroxide Ion, the solution becomes basic.