If you add hydrochloric acid (HCl) to magnesium (Mg) metal, what will you observe?
You wrote the equation just a post agao. H2 gas bubbles off.
After reviewing the balanced equation between mg and Hcl ,if 0.0411 grams of mg are reacted with excess hcl, how many moles of hydrogen gas will be formed?
When hydrochloric acid (HCl) is added to magnesium (Mg) metal, you will observe a chemical reaction. The reaction between HCl and Mg is highly exothermic, meaning it releases heat. Here is how you can observe the reaction:
1. Obtain a small piece of magnesium metal and place it in a container (such as a beaker or test tube).
2. Add a small amount of hydrochloric acid to the container containing the magnesium. It is important to wear appropriate safety equipment like gloves and goggles while handling chemicals.
3. As the reaction takes place, you will observe several things:
- Effervescence: Bubbles of gas will be released from the metal surface. This is due to the formation of hydrogen gas (H2). You may see the bubbles rising and escaping into the air.
- Change in appearance of the metal: The magnesium metal will start to appear dull and quickly turn into a greyish-white powder, called magnesium chloride (MgCl2). This is a result of the metal reacting with hydrochloric acid to form a new compound.
- Heat production: The reaction between HCl and Mg is highly exothermic, meaning it generates heat. You may feel the container becoming warm to the touch.
It is important to note that hydrochloric acid is corrosive and should be handled with care. Additionally, this chemical reaction should only be performed in a well-ventilated area or under a fume hood to avoid inhaling any gas released during the reaction.