"2HCl aq" refers to a chemical equation showing that two molecules of hydrochloric acid (HCl) are present in aqueous solution. This notation helps to indicate the stoichiometry of the reactants in a chemical reaction.
Mg(s) + 2HCl(aq.)----->MgCl2(aq.) + H2(g)
To balance the chemical equation representing this reaction, first write the unbalanced equation: HCl(aq) + Mg(OH)2(aq) → MgCl2(aq) + H2O(l). To balance it, you would need to ensure the same number of each type of atom on both sides of the equation. In this case, you would need to put a coefficient of 2 in front of HCl(aq) and MgCl2(aq) to balance the equation: 2HCl(aq) + Mg(OH)2(aq) → MgCl2(aq) + 2H2O(l).
Zn (s) + 2HCl (aq) → H2 (g) + ZnCl2 (s)
CaCO3(s) + 2HCl(aq) -> CaCl2(aq) + H2CO3(aq) is the balanced chemical equation H2CO3 is not stable in this form, so it splits into CO2(g) + H2O(l) Therefore the true equation will be: CaCO2(s) + 2HCl(aq) -> CaCl2(aq) + CO2(g) + H2O(l) You NIE will start like this: CaCO2(s) + 2H+(aq) + 2Cl-(aq) -> Ca2+(aq) + 2Cl-(aq) + CO2(g) + H2O(l) and will end as: 2H+(aq) + CaCO2(s) -> Ca2+(aq) + CO2(g) + H2O(l)
An increase in surface area means an increase in the rate of reaction.
BaBr2 + 2HCl >> BaCl2 + 2HBr
Zn(s) + 2HCl(aq) ---> ZnCl2(aq) + H2(gas)
Mg2 HCl= Mg+HCl2 ______________________________ Mg(s) + 2HCl(aq) --> MgCl2(aq) + H2(g) That should be correct. The topmost answer is the decomposition of MgHCl, it looks like.
Pb(NO3)2 (aq) + 2HCl (aq) ----> PbCl2 (s) + 2HNO3 (aq)
The balanced equation is as follows: Zn(s) + 2HCl(aq) --> ZnCl2(aq) + H2(g)
BaCl2 + H2SO4 → BaSO4 + 2HCl Reactants Products
Ba(OH)2 (aq) + 2HCl (aq) --> BaCl2 (aq) + 2H2O (l)
Mg(s) + 2HCl(aq.)----->MgCl2(aq.) + H2(g)
2Na (s) + 2HCl (aq) -> 2NaCl (aq) + H2 (g)
The balanced chemical equation for the reaction between zinc and hydrochloric acid is: Zn(s) + 2HCl(aq) -> ZnCl2(aq) + H2(g).
The balanced equation for tin (Sn) placed in hydrochloric acid (HCl) is: Sn(s) + 2HCl(aq) → SnCl2(aq) + H2(g).
Zn (s) + 2HCl (aq) --> ZnCl2 (aq) + H2(g)