Answer:
A solid (s) magnesium strip or ribbon is added to hydrochloric acid, an aqueous solution (aq) . The reaction produces aqueous magnesium chloride and gaseous (g) hydrogen gas, which as you can see bubbles out of solution.
Answer:
That unknown substance is water
Explanation:
This is a neutralization reaction since, the hydrogen ion, H+, from the HCl is neutralized by the hydroxide ion, OH-, from the KOH to form the water molecule, H2O and salt, KCl only.
The correct option is this: THE ATOMS IN THE SOLID WILL BE VIBRATING IN POSITION.
This is because the molecules in solids are held together by strong inter molecular forces, the molecules can not move about freely but they cab vibrate in their position.