Answer:
1) 4Fe + 3O2 → 2Fe2O3
2) H2 + Cl2 → 2HCl
3) 2Ag + H2S → Ag2S + H2
4) CH4 + 2O2 → CO2 + 2H2O
5) 2HgO → 2Hg + O2
6) 2Co + 3H2O → Co2O3 + 3H2
First you have to look at the mole ratios of the reactants and products and that ratio is 2:2:2 or you can reduce that to 1:1:1. That means an amount of peroxide will produce the same amount of oxygen gas. If there are 8 mol of peroxide will give 8 mol of oxygen gas
Honestly, I could think of at least 3 chemistry principles relating to this context. That would be the latent energy, intermolecular forces and melting point depression. They are actually related to each other. Pure solid melt at a very low range of melting point. The latent energy is the energy gained at a constant temperature to convert the solid into liquid form. Hence, an impure solid would have a wider range because of the varying type of intermolecular forces. This would lead to melting point depression where impure solid melt at lower temperatures than pure substances. However, they would still have a wide range. So, it is safe to say that pure solid have meting points, while impure solids have melting ranges.
Answer:
pH + pOH = 14, [H₃0⁺] [0H⁻] = 10⁻¹⁴
Explanation:
When it comes to questions involving pH, the equations used are;
[H₃0⁺] [0H⁻] = 10⁻¹⁴
This equation shows the concentration of hydroxonium ions alongside that of the hydroxide ions.
pH + pOH = 14
If the value of either the pH of the pOH is know,one can calculate the value of the other using this equation.
