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Is magnesium an independent variable?
Variables: (i)Independent variable: Mass of Magnesium ribbon (ii)Dependent variable: Mass of Magnesium Oxide The independent variable will be the mass of magnesium ribbon, this is because the mass of the product i.e. Magnesium Oxide, depends on how much Magnesium is added. …read more.
What happens when magnesium reacts with HCl?
Adding magnesium metal to hydrochloric acid produces hydrogen gas. The magnesium dissolves to form magnesium chloride, MgCl2.
Why does magnesium fizz with hydrochloric acid?
It takes place because magnesium is more reactive than hydrogen so it displaces it in the chloride compound. Magnesium is oxidized, losing two electrons. Hydrogen is reduced from H+ ion to H2 gas when the elecrons from magnesium are transferred to it.
What is produced when aluminum reacts with hydrochloric acid?
aluminum chloride
Aluminum metal reacts with hydrochloric acid to form hydrogen gas and an aluminum chloride solution. In this investigation, you will predict the mass of hydrogen gas produced by a given amount of reactants, then measure the amount, and compare them. Hydrochloric acid is an aqueous solution of hydrogen chloride.
Why does magnesium bubble in hydrochloric acid?
What are the independent variables of magnesium and hydrochloric acid?
The Independent Variables: The concentration of hydrochloric acid used and the surface area of the Magnesium metal used. The Controlled Variables (constants): The quantity of the Magnesium for each test will be held constant.
What are the dependent and independent variables in chemistry?
The Dependent Variables: The measured duration of acid-metal reaction in seconds and the rate of gas bubbles. The Independent Variables: The concentration of hydrochloric acid used and the surface area of the Magnesium metal used. The Controlled Variables (constants): The quantity of the Magnesium for each test will be held constant.
What is the balanced formula for hydrochloric acid?
The balanced formula for this is: Mg(s) + 2HCL(aq) MgCl2(aq) + H2(g) Magnesium + hydrochloric acid Magnesium Chloride + Hydrogen Magnesium will react with hydrochloric acid, because it is higher in the reactivity series than hydrogen.
How to calculate rate of reaction between HCl and magnesium ribbon?
An equation for the reaction: Magnesium + hydrochloric acid >magnesium chloride + hydrogen Mg (s) + 2 HCL (aq) >Mgcl 2 (aq) + H 2 (g) 1 mole 2 moles 1 mole 1 mole So we can say that one mole of magnesium reacts with 2 moles of hydrochloric acid.