0
Add your answer:
Earn +20 pts
What happens when you put Magnisium and Hydrochloric Acid together?
When magnesium and hydrochloric acid are combined, a chemical reaction occurs where hydrogen gas is produced and magnesium chloride is formed. This reaction is exothermic, meaning it releases heat, and bubbles of hydrogen gas are visible as the reaction takes place.
Is physical or chemical reaction takes place when sodium hydroxide mixed with water?
When sodium hydroxide is mixed with water, a chemical reaction takes place where the sodium hydroxide dissociates into its ions, Na+ and OH-. This is a physical change.
What is the reaction type when sodium is placed into water?
The reaction type when sodium is placed into water is a single displacement reaction. In this reaction, the sodium reacts with water to form sodium hydroxide and hydrogen gas, releasing a lot of heat in the process.
What happens when water added to calcium oxide?
When water is added to calcium oxide, a chemical reaction takes place and calcium hydroxide is formed. This reaction is exothermic and releases heat. The resulting mixture may also become hot.
A chemical reaction that releases energy is called?
Exothermic reactions
What happens when you put Magnisium and Hydrochloric Acid together?
When magnesium and hydrochloric acid are combined, a chemical reaction occurs where hydrogen gas is produced and magnesium chloride is formed. This reaction is exothermic, meaning it releases heat, and bubbles of hydrogen gas are visible as the reaction takes place.
Is physical or chemical reaction takes place when sodium hydroxide mixed with water?
When sodium hydroxide is mixed with water, a chemical reaction takes place where the sodium hydroxide dissociates into its ions, Na+ and OH-. This is a physical change.
What is the reaction type when sodium is placed into water?
The reaction type when sodium is placed into water is a single displacement reaction. In this reaction, the sodium reacts with water to form sodium hydroxide and hydrogen gas, releasing a lot of heat in the process.
What are the ways that heat takes part in a chemical changes?
Heat can be involved in a chemical reaction that is endothermic(absorbs heat) or that is exothermic(releases heat)
What happens when water added to calcium oxide?
When water is added to calcium oxide, a chemical reaction takes place and calcium hydroxide is formed. This reaction is exothermic and releases heat. The resulting mixture may also become hot.
A chemical reaction that releases energy is called?
Exothermic reactions
Chemical reaction that releases energy?
All chemical reactions that release energy in the form of heat are called exothermic reactions.
What is respiratory organ takes in and releases?
takes in oxygen and releases carbon dioxide.
If a piece of potassium metal is dropped in water then a vigorous reaction takes place with the formation of potassium hydroxide and hydrogen gas is evolved?
Yes, it is correct.
Contrast the forming and breaking of chemical bonds in terms of energy changes?
The formation of chemical bonds releases energy. It is an exothermic process. The breaking of chemical bonds takes energy. It is an endothermic process.
What is the change when you add zinc to about 5 ml of hydrochloric acid?
When zinc is added to hydrochloric acid, a chemical reaction takes place where zinc reacts with the acid to form zinc chloride and hydrogen gas. This reaction is exothermic, meaning it releases heat energy. The solution may also become warmer and bubbles of hydrogen gas will be evolved.
Why is adding water mixed to sodium a chemical?
When water is added to sodium, a chemical reaction takes place where sodium reacts with water to form sodium hydroxide and hydrogen gas. This is a chemical reaction because new substances are being formed with different properties than the original substances.
