We’d use filtration. The mixture is poured over filterpaper in a funnel. The solid(residue) is left behind and the filtrate is pure liquid with no solid.
There are three different physical state configurations of a substance, solid, liquid and gas. The different states are caused by the arrangement and movement of the particles that make up …
No, sodium is left in solution and forms Sodium Hydroxide due to Sodium reacting with OH- ions. This happens because sodium is much more reactive than hydrogen.
As you move from left to right along period 3 (from K to Kr) the amount of protons in the nucleus increases therefore proton density increases. Shielding stays the same …
Fractional distillation is used to separate a isooctane from a mixture of octane and isooctance. Isooctane has a lower boiling point, so reaches the top of the distillation column first, …
First we need to construct the equation of the combustion: C2H5OH(l) + 3O2(g) --> 2CO2(g) + 3H2O(l)Use aid of structural formulaLeft hand side (endothermic - requires energy):5(413) + 347 + …
Similarities Doesn't conduct electricity (only when the ionic is in solid) and covalent always (no charged particles) Many dissolve in water Differences Ionic substances loose or gain and electron to …
In graphite, carbon atoms are in layers which slide over each other. Whereas in graphene, there is only a single layer of carbon atoms.
The particles in a gas are widely spaced and move around freely. This means they will move to fit into any space but in liquids and gases the particles are …
By definition, ΔH°rxn = Σ ΔH°f (products) − Σ ΔH°f (reactants).The enthalpy of combustion is the same as the enthalpy of reaction in this case. From Table …
The Na2 tells us there are 2 sodium atoms present, The S tells us there is one Sulphur atom presentThe O4 tells us there are four oxygen atoms presentTherefore, each …
We must start off by highlighting important parts of the question, ensuring that we understand the terms and what the question is asking from you. The key words in this …
The Kekulé model of benzene consists of a 6 membered ring with 3 double bonds. This would imply a hydrogenation enthalpy very similar to that of ethene, since double bonds …
The full ionic equation describes the components as individual ions, as this is how they exist in aqueous solution. Ba2+ + 2 NO3- + 2 Na+ + …
CnH2n+2Alkanes have similar chemical properties, have the same general formula and display a gradual change in melting and boiling points