For for the formulas with the abbreviated names of the ions, you switch the exponents for each one, so for number 2 it would be Fe2O3 or for 6 it would be CaCl2
For the compounds, you take the abbreviated names of the ions from the periodic table and wherever the ion falls, that’s how many electrons it has and so it would need more ions to make the full shell, so for sodium chloride, since both need one, it would be NaCl or for tin (ll) fluoride, it would be SnF2
Since benzene is a covalently bonded chemical, ions and ionic bonds have no bearing on it. Simply put, boiling will cause the molecules to split from one another and turn into a gas.
Benzene boils at a greater temperature than other hydrocarbons with comparable molecular sizes, at 80°C (pentane and hexane, for example). The increased boiling point is most likely caused by how simple it is to create transient dipoles involving the delocalized electrons. At 111°C, methylbenzene begins to boil. Pure benzene and pure toluene have normal boiling points of 80.1 C and 110.6 C, respectively. Due to fewer intermolecular interactions, benzene has a lower boiling point than toluene.
Learn more about benzene here-
brainly.com/question/7284916
#SPJ4
Answer:
35.6 % Nickel and 64.4 Oxygen
Explanation:
Hope this helps! :)
When it dissolves, .32 mol NH4Cl will split into two ions, NH4+ and Cl-. Because the amount of each of the two ions stays the same, there are .32 mol of each one.
.32 mol NH4+ added to .32 mol Cl- gives you .64 mol ions total.
.64 moles!