Mg + HCl = MgCl2 + H2 is a Single Displacement (Substitution) reaction where one mole of solid Magnesium [Mg] and two moles of aqueous Hydrogen Chloride [HCl] react to form one mole of aqueous Magnesium Chloride [MgCl 2] and one mole of Dihydrogen [H 2] gas

化学方程式代表化学反应。它显示反应物（引发反应的物质）和产物（反应形成的物质）。例如，氢 (h2) 与氧 (o2) 反应生成水 (h2o)，化学方程式为：

Calculate the complete and net ionic equations, spectators and precipitates in Mg(s) + 2HCl(aq) = MgCl2(aq) + H2(g)

已求解并配平的化学方程式 Mg + 2 HCl → H2 + MgCl2 具有完整的产物. 请求补充完整产物并配平方程. 如果未启用JavaScript，某些功能可能无法正常运行。

Mg is balanced: 1 atom in reagents and 1 atom in products. H is not balanced: 1 atom in reagents and 2 atoms in products. Cl is balanced: 2 atoms in reagents and 2 atoms in products. Let's balance this equation using the algebraic method. First, we set all coefficients to variables a, b, c, …

Mg + 2HCl = MgCl2 + H2 is a redox reaction where Mg is oxidized and H is reduced. Mg is a reducing agent (i.e. it lost electrons) and HCl is a oxidizing agent (i.e. it gained electrons).

化学方程式为：Mg+2HCl=Mgcl2+H2 金属镁是叫活泼的金属，在金属活动顺序表中，排在钠后，铝前，属于活泼金属，能与酸反应生成H2。

反应相当剧烈，放出大量的热。

Solved and balanced chemical equation MgCl2 + H2 → Mg + 2 HCl with completed products. Application for completing products and balancing equations.

2009年12月27日 · Mg+2HCl=MgCl2+H2↑怎么配平？ 【加急】先分析一下，一个mg失去两个电子 一个h2刚好得到两个电子这样一个mg对应一个h2，然后根据原子个数守恒就可以直接在hcl前面加个2了，很简单呀