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Copper chloride aluminum foil physical change?
When copper chloride reacts with aluminum foil, a chemical change occurs. This reaction results in the formation of copper metal and aluminum chloride. The color change (from blue to brown/red) and the formation of a solid precipitate are indicators of a chemical reaction taking place.
Is magnesium ribbon burns an endothermic reaction or an exothermic reaction?
The reaction is highly exothermic as heat energy is released from the system to the surroundings whereas in endothermic the heat is absorbed from the surroundings into the system and you can also observe or see the smoke coming out of the apparatus in which the reaction is occurring or taking place.Heat energy is being released in the form of smoke.Therefore the reaction is exothermic.
How many grams of bromine contain 602200000000000000000000 atoms?
One molecule of bromine contains 2 atoms. Therefore, to find the number of grams in 602200000000000000000000 atoms, you would divide this number by Avogadro's number (6.022 x 10^23) to get the number of moles, and then convert to grams using the molar mass of bromine (79.9 g/mol).
When a small piece of potassium is dropped into a beaker of water the potassium moves about rapidly and then ignites within secounds the metal is gone and all activity ceases Is that chemical change?
Yes, according to wikipedia: Potassium reacts very violently with water producing potassium hydroxide (KOH) and hydrogen gas.2 K (s) + 2 H2O (l) → 2 KOH (aq) + H2 (g) This is a chemical change.
Bubbling present during a chemical reaction is evidence of what?
Bubbling present during a chemical reaction is evidence of a gas being produced. The formation of gas bubbles indicates that a chemical change is taking place, often as a result of a reaction between two or more substances.
Which observations are made in the reaction of hexane with bromine water?
The observation in the reaction of hexane with bromine water is that the color of bromine water changes from orange to colorless as the bromine is being added to the hexane. This indicates that a reaction between hexane and bromine is taking place, forming a colorless product.
Which Reaction is taking place when metals reacts slowly with air or water?
corrosion?
Taking an antacid is example of what type of reaction?
Taking an antacid is an example of a chemical reaction known as a neutralization reaction. In this reaction, the antacid reacts with stomach acid to form water and a salt, which helps to reduce acidity in the stomach.
What type of reaction is taking place when Butane burns to produce a flame?
The combustion of butane to produce a flame is a chemical reaction known as a combustion reaction. In this reaction, butane reacts with oxygen to produce carbon dioxide, water, and heat energy.
What is the reaction when zinc reacts with sulphuric acid?
We can see bubbles of gas being released. The gas is a new substance, so this is evidence that a chemical reaction is taking place. the gas released during this reaction is hydrogen.
What observation happens when rubidium reacts with water?
When rubidium reacts with water, it produces rubidium hydroxide and hydrogen gas. The reaction is highly exothermic and the metal may ignite spontaneously upon contact with water due to its high reactivity. The rapid evolution of hydrogen gas is a key indicator of the reaction taking place.
What is the reaction taking place as the hydrogen burns?
Water is formed when hydrogen gas burns (reacts) with oxygen (from air) 2 H2(g) + O2(g) --> 2H2O(l)
What gas is formed when a base reacts with an acid?
No gas. Acid + base --> salt + water only
How do these show if a metal reacts with the acid?
If a metal reacts with an acid, you will observe bubbles of gas being produced, a change in temperature (either an increase or decrease), and the metal may appear to dissolve or form a metal salt in the solution. These are common indicators that a chemical reaction is taking place between the metal and the acid.
When milk of magnesia reacts with the acids in your stomach what reaction is taking place?
When milk of magnesia reacts with the acids in your stomach, it forms magnesium chloride and water. The magnesium chloride is a neutralized compound that helps reduce stomach acidity and relieve symptoms of heartburn.
What happens to the temperature when barium hydroxide react with ammonium chloride?
When barium hydroxide reacts with ammonium chloride, the reaction is exothermic, which means it releases heat. This causes the temperature to increase in the surroundings where the reaction is taking place.
What is the result when copper reacts with hydrochloric acid?
When copper reacts with hydrochloric acid it produces a metal salt. In this case the metal salt is copper chloride. It also produces hydrogen as a bi-product. You can test to see if it's hydrogen by taking a lit match and put it into the container you did to reaction in ( the container should be a boiling tube as some heat is produced during the reaction) You should hear a squeaky pop. That the hydrogen.
