well no the mass will decrease because the beaker isn't concealed with a lid the hydrogen that has been produced is now escaping in to the air. However you could say that once the hydrogen has been released that empty space in the beaker is now being filled up with other gases in the atmosphere!
No, that is impossible. The law of the conservation of mass. It has to remain the same, some of the weight may be put into the atmosphere as gas though.
Mg + 2HCl -> MgCl2 + H2
No, this is a chemical reaction
A metal and an acid reacted to form a salt and hydrogen gas.
It could stop because there wasn't enough magnesium or hydrochloric acid for the reaction to go to completion.
the limiting factor varies between the magnesium and hydrochloric acid as there needs to be enough hydrogen for every magnesium..
Yes, when magnesium reacts with hydrochloric acid it is a single replacement reaction. The same is true for nearly all cases of a reaction between an acid and a metal.
No, it is a single displacement reaction. It can also be called a redox reaction. It is not an acid base reaction because although hydrochloric acid is obviously and acid, magnesium is a metal, not a base.
I think it's copper sulphate
It could stop because there wasn't enough magnesium or hydrochloric acid for the reaction to go to completion.
the limiting factor varies between the magnesium and hydrochloric acid as there needs to be enough hydrogen for every magnesium..
Yes, when magnesium reacts with hydrochloric acid it is a single replacement reaction. The same is true for nearly all cases of a reaction between an acid and a metal.
This reaction is exothermic.
The reaction is: Mg + 2HCL = MgCl2 + H2
Magnesium hydroxide plus hydrochloric acid yields magnesium chloride plus water. Mg(OH)2 + 2HCl = MgCl2 + 2H2O
No, it is a single displacement reaction. It can also be called a redox reaction. It is not an acid base reaction because although hydrochloric acid is obviously and acid, magnesium is a metal, not a base.
That a reaction has occurred between the magnesium & hydrochloric acid: Mg(s) + HCL(aq) --> MgCl(aq) + H2(g)
I think it's copper sulphate
The reaction between magnesium hydroxide and hydrochloric acid would have these products. Mg(OH)2 + 2HCl --> MgCl2 + 2H2O
These two substances readily react to produce magnesium chloride and hydrogen gas, The reaction equation is Mg(s)+ 2HCl(aq) = MgCl2(aq) + H2(g)
The equation for the reaction between magnesium and hydrochloric acid is Mg + 2HCl --> MgCl2 + H2