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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!

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12y ago
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13y ago

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.

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13y ago

Mg + 2HCl -> MgCl2 + H2

No, this is a chemical reaction

A metal and an acid reacted to form a salt and hydrogen gas.

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Q: Is the reaction between magnesium and hydrochloric acid physical?
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Related questions

Why does the reaction stop between magnesium and hydrochloric acid?

It could stop because there wasn't enough magnesium or hydrochloric acid for the reaction to go to completion.


What is the limiting factor in the reaction of hydrochloric acid and magnesium?

the limiting factor varies between the magnesium and hydrochloric acid as there needs to be enough hydrogen for every magnesium..


What happens if magnesium is added to hydrochloric acid is a singlereplacement reaction?

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.


What type of energy change associated with chemical reaction between magnesium and hydrochloric acid?

This reaction is exothermic.


Where can you find a particle diagram of the reaction between Hydrochloric acid and magnesium?

The reaction is: Mg + 2HCL = MgCl2 + H2


What is the Equation for the reaction between magnesium hydroxide and hydrochloric acid?

Magnesium hydroxide plus hydrochloric acid yields magnesium chloride plus water. Mg(OH)2 + 2HCl = MgCl2 + 2H2O


Is magnesium and hydrochloric acid an acid-base reaction?

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.


When a piece of magnesium is added to dilute hydrochloric acid occurs and hydrogen gas is released from the mixtureThe fizzing is evidence that has occured between magnesium and hydrochloric acid is?

That a reaction has occurred between the magnesium & hydrochloric acid: Mg(s) + HCL(aq) --> MgCl(aq) + H2(g)


What catalysts to use for reaction between magnesium and hydrochloric acid?

I think it's copper sulphate


Which neutralization reaction form magnesium chloride and water?

The reaction between magnesium hydroxide and hydrochloric acid would have these products. Mg(OH)2 + 2HCl --> MgCl2 + 2H2O


What is the reaction between hydrochloric acid and magnesium?

These two substances readily react to produce magnesium chloride and hydrogen gas, The reaction equation is Mg(s)+ 2HCl(aq) = MgCl2(aq) + H2(g)


What is the balanced chemical equation of hydrochloric acid and magnessium ribbon?

The equation for the reaction between magnesium and hydrochloric acid is Mg + 2HCl --> MgCl2 + H2