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# Why does the reaction of magnesium and hydrochloric acid decrease?

## Why does the reaction of magnesium and hydrochloric acid decrease?

50 cm3 of 1M hydrochloric acid is a six-fold excess of acid. In this reaction, the magnesium and acid are gradually used up. However the acid is in excess, so it is mainly the loss of magnesium (surface area becomes smaller) that causes the change in the rate.

### Does Zinc react with dilute hydrochloric acid?

Metals with dilute acid When zinc reacts with hydrochloric acid it produces zinc chloride and hydrogen gas.

#### How can you increase the rate of reaction between magnesium and hydrochloric acid?

keep the concentration of acid the same – it is best to use a more dilute solution, or else the reaction will be too fast to measure at higher temperatures. warm the acid to different temperatures using a hot water bath, or a Bunsen burner, tripod and gauze. measure and record the temperature of the acid.

Is magnesium and hydrochloric acid an exothermic reaction?

Burning magnesium is an exothermic reaction because when magnesium and oxygen particles collide to form new bonds, energy is released into the surroundings. Citric acid and baking soda is an endothermic reaction as the temperature decreases. Magnesium and hydrochloric acid is exothermic as the temperature increases.

Does Zinc react with hydrochloric acid?

When zinc reacts with hydrochloric acid it produces zinc chloride and hydrogen gas. We can measure the rate of the reaction by measuring how fast the reaction produces hydrogen.

## What happens when you add zinc to hydrochloric acid?

When zinc reacts with hydrochloric acid it produces zinc chloride and hydrogen gas.

### Does magnesium react with hydrochloric acid?

Adding magnesium metal to hydrochloric acid produces hydrogen gas. The magnesium dissolves to form magnesium chloride, MgCl2. Let’s write a balanced equation for this reaction.

Magnesium reacts with hydrochloric acid according to the equation: Mg(s) + 2 HCl(aq) –> MgCl 2(aq) + H 2(g) This demonstration can be used to illustrate the characteristic reaction of metals with acid, a single replacement reaction, or to demonstrate the generation of hydrogen gas.

#### What type of reaction is magnesium and hydrochloric acid?

The reaction between magnesium and hydrochloric acid combine to form a salt of magnesium chloride and release hydrogen gas. This single replacement reaction is a classic example of a metal reacting in an acid to release hydrogen gas.

What is acid reacts with magnesium to make magnesium chloride?

When magnesium reacts with hydrochloric acid, hydrogen gas and soluble magnesium chloride are produced according to the following equation: It takes place because magnesium is more reactive than hydrogen so it displaces it in the chloride compound.