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Mg + 2HCl -> MgCl2 + H2

This is an exothermic reaction that produces heat by changing energy states between the reactants and the products.

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12y ago
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4mo ago

When magnesium reacts with an acid such as hydrochloric acid, it produces hydrogen gas and magnesium chloride. This reaction is exothermic, meaning it releases heat energy as a byproduct. The heat produced causes the test tube to become hot.

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Q: Why does a test tube get hot when you put magnessium into acid?
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Continue Learning about Chemistry

Can you place a hot test tube in a test tube rack?

It is not recommended to place a hot test tube directly into a test tube rack as this can cause damage to both the test tube and the rack. It is advised to allow the test tube to cool down before placing it in the rack to prevent any accidents or mishaps.


What is used for holding a test tube in place when the tube is hot or should not be touched?

A test tube holder, also known as test tube clamp or test tube rack, is used to hold a test tube in place when the tube is hot or should not be touched. It allows safe handling of test tubes during heating or when conducting chemical reactions.


What two things are important to remember when heating a test tube?

First, always point the test tube away from yourself and others to prevent any splattering of hot liquids. Second, use a test tube holder to handle the test tube as it becomes very hot, preventing burns.


What is used to pick up and hold hot test tube?

Depending on the contents and temperature of the beaker you might use: Bare hands, Vinyl gloves, (latex if you aren't allergic) Thermally insulated gloves if it's hot, Metal forceps if it's really hot, A waldo remote manipulator or glove box if it's a bio-hazard or radioactive. JCF


What are the precautions of test tube holder?

Always wear appropriate personal protective equipment, such as gloves, when handling test tube holders to prevent burns or injuries. Ensure the test tube holder is securely gripping the test tube to prevent accidental spills or breakage. Be cautious when using a test tube holder with hot test tubes, as they can cause burns. Allow hot test tubes to cool before handling without proper protective equipment.

Related questions

Why is it that when iron is added to dilute acid the test tube turns hot?

Because there's a chemical reaction going on.


Can you place a hot test tube in a test tube rack?

It is not recommended to place a hot test tube directly into a test tube rack as this can cause damage to both the test tube and the rack. It is advised to allow the test tube to cool down before placing it in the rack to prevent any accidents or mishaps.


What is used for holding a test tube in place when the tube is hot or should not be touched?

A test tube holder, also known as test tube clamp or test tube rack, is used to hold a test tube in place when the tube is hot or should not be touched. It allows safe handling of test tubes during heating or when conducting chemical reactions.


What is used to measure hot liquids?

test tube


What two things are important to remember when heating a test tube?

First, always point the test tube away from yourself and others to prevent any splattering of hot liquids. Second, use a test tube holder to handle the test tube as it becomes very hot, preventing burns.


Alternate Wordings for 'Which freezes first cold water or hot water or salt water?

One alternate wording is At waters freezing temperaturethere are 3 test tubes, cold water is in test tube A, hot water is in test tube B, and salt water is in test tube C. Which test tube at (32 degrees) which will freeze the fastest? i hope i helped!


What is used to pick up and hold hot test tube?

Depending on the contents and temperature of the beaker you might use: Bare hands, Vinyl gloves, (latex if you aren't allergic) Thermally insulated gloves if it's hot, Metal forceps if it's really hot, A waldo remote manipulator or glove box if it's a bio-hazard or radioactive. JCF


What are the precautions of test tube holder?

Always wear appropriate personal protective equipment, such as gloves, when handling test tube holders to prevent burns or injuries. Ensure the test tube holder is securely gripping the test tube to prevent accidental spills or breakage. Be cautious when using a test tube holder with hot test tubes, as they can cause burns. Allow hot test tubes to cool before handling without proper protective equipment.


When heating a test tube one should always use this piece of safety equipment?

When heating a test tube, one should always use a test tube holder. This provides a secure grip on the hot test tube and prevents accidental burns or spills. It is essential for handling hot glassware safely in the laboratory.


Heating the liquid in a test tube?

When heating a liquid in a test tube, make sure to use a Bunsen burner or a hot plate, and gently heat the bottom of the test tube. Avoid heating the liquid too quickly to prevent bumping or boiling over. Use a test tube holder to hold the test tube and prevent accidental spills or burns.


What precautions must you observe in heating liquids in a test tube?

When heating liquids in a test tube, ensure that the test tube is pointing away from yourself and others to prevent burns in case of splashing or boiling over. Use a test tube holder to hold the test tube as it can get hot. Also, heat the liquid gently and avoid overheating to prevent the test tube from shattering.


Can you put a wooden test tube rack in hot water?

yes