Magnesium oxide is a very inert substance. It does not disolve readily in water but dos dissolve in acids.
the reaction with concentrated hydrochloric acid is exothermic.
It is exothermic. Heat will be released to the environment in this reaction. It is also a single replacement reaction. Here is the equation: 2HCl + Mg --> MgCl2 + H2
Zn + 2HCl --- ZnCl2 + H2 Mg + 2HCl --- MgCl2 + H2
Zn + 2HCl -> ZnCl2 + H2 As you can see it is the hydrogen gas released in this reaction, which causes the effervescence. Just to note, in any reaction between a reactive metal and an acid, hydrogen gas is always produced.
Correctly represented, it's Mg + 2HCl --> MgCl2 + H2, and it's a single replacement reaction.
It can be, but it can also be other types of reaction. An example of an oxidation reaction that is also a single replacement would be Zn(s) + 2HCl ==> ZnCl2 + H2. In this reaction Zn is oxidized and H is reduced.
It is exothermic. Heat will be released to the environment in this reaction. It is also a single replacement reaction. Here is the equation: 2HCl + Mg --> MgCl2 + H2
Mg + 2HCl -> MgCl2 + H2 This is an exothermic reaction that produces heat by changing energy states between the reactants and the products.
The reaction is: Zn + 2HCl = ZnCl2 + H2
The reaction proceed will be an exothermic one and will result in formation of lead chloride and water. This process is called neutralization and it occurs between an acid and base. Since lead oxide is a metallic oxide, hence the reaction will be a neutralization one. The balanced chemical equation for the above process is : PbO + 2HCl -------> PbCl2 + H2O Pb(OH)2 +2HCl -----> PbCl2 + 2H2O
H2SO4 + Zn --> ZnSO4 + H2 It's an exothermic single-replacement reaction.
The reaction is: Mg + 2HCL = MgCl2 + H2
Ca + 2HCl -----> CaCl2 + H2
Al + 2HCl --> AlCl2 + H2
Na2CO3 + 2HCl ----> 2NaCl + H2O + CO2
what is mg + 2hcl - MgCl2 + H2
This reaction is correct.
The reaction produces heat.