What type of reaction is the following? 1 Mg(s) + 2 HCl(aq) → 1 MgCl2 (aq) + 1 H2 (9)
O Combustion
O Decomposition
O Double Replacement
O Neutralization
O Single Replacement
O Synthesis

Single Replacement

Given

Reaction

Mg(s) + 2 HCl(aq) → MgCl2 (aq) + H2 (g)

Required

Type of reaction

Solution

A single replacement reaction is a chemical reaction in which one element replaces the other elements of a compound to produce new elements and compounds

General formula :

A + BC ⇒ AC + B

Not all of these reactions can occur. We can use the activity series(the Volta series)

The more left the position of a metal in the series, the more reactive metal (easy to release electrons, the stronger the reductor)

aquifers are bounded above and below by impermeable rock. the driving force of groundwater movement in confined aquifers is pressure, rather than gravity.