Does the order of reactants and products in a chemical equation matter? Is there a standard thing that we should follow about this?
The order of reactants and products does not really matter. Sometimes we get into a slogan routine, i.e. [math]\text{acid plus base gives salt and water}[/math]…but we could say [math]\text{base plus acid}[/math] etc.ALL chemical reactions (and most physical reactions) FOLLOW the principle of conservation of mass and charge…and this is why stoichiometry is emphasized keenly in introductory chemistry. For every PRODUCT particle there MUST be a corresponding REACTANT particle .. if not, then someone, usually you, has made a mistake.
Balancing Chemical Equations?
CH4 + 2 O2 = CO2 + 2 H2O
Chemical equations with limiting reactants... Very tricky?
It's actually easier than it first looks, because the right-hand side of each equation is irrelevant to the question. It is the relative ratios of the two starting materials that is important, which you can see from the numbers before each molecule in a balanced chemical reaction (no number just means "1"). A) HCl, because they react in a 1:1 ratio (2 mol HCL reacts with 2 mol NaOH) B) Zn, because they react in a 1:2 ratio (2.5 mol Zn reacts with 5 mol HCl) A) Fe(OH)3+, because they react in a 2:3 ratio (4 mol Fe(OH)3+ reacts with 6 mol H2SO4)
In chemical reactions, a reactant is often a limiting reactant. When consumed that reactant, the reaction stop?
In chemical reactions, a reactant is often a limiting reactant. When consumed that reactant, the reaction stops and fail to form products. The nitrogen gas and hydrogen gas produce hydrazine gas as shown in the equation. 2H2 + N2 = N2H4 4.0g 50g 32g Which change will increase the performance of hydrazine? You can use your calculator. A. reduce the amount of nitrogen gas B. reduce the amount of hydrogen gas C. increase the amount of nitrogen gas D. increase the amount of hydrogen gas