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How can you tell if a chemical reaction is happening in a test tube?
You can identify a chemical reaction in a test tube by observing changes such as color shifts, the formation of a gas (bubbles), or the production of a precipitate (solid) that was not present before. Additionally, changes in temperature or the release of light can also indicate a reaction. If the substances mix and exhibit new properties, it’s a strong sign that a chemical reaction is occurring.
How could you visually tell that something is having a chemical reaction?
If you see fizzing, bubbling, or a change in color. They're good signs of chemical reactions you can see. Also, smoke. If you see smoke, you probably have a chemical reaction.
What will tell you the efficiency of a chemical reaction?
You need to calculate the yield of the reaction.
How can you tell the difference between a chemical reaction and not a chemical reaction?
A chemical reaction will do the following; Change colour Create smoke A non chemical reaction (Physical Reaction) will do the following; Change State Be able to change back to the original materials
What can chemical equations tell you about a chemical reactions?
Chemical equations describe the products and reactants in a chemical reaction.
Did a chemical reaction take place if a solid precipitate formed?
Yes!! You mixed liquids together and a solid was formed, certainly a chemical reaction. Depending on the reactants you could most likely tell which atoms joined to make the precipitate.
How can you tell there is a chemical reaction when iron rusts?
Because it is not a physical change it is a chemical change.
Could you tell me about a silver dollar that turned blue can you tell me anything about that?
It might be a chemical reaction from water if the metal itself is blue. Otherwise, it might be stained from food or paint.
How can you tell when a chemical has reacted?
You can tell when a chemical reaction has occurred by observing changes in color, temperature, formation of a gas, or the formation of a precipitate. Additionally, a chemical reaction often involves the breaking and forming of bonds between atoms, resulting in the rearrangement of molecules.
How can you tell fools gold from gold by using a chemical reaction?
With magnets.
How can you tell a chemical reaction is losing heat?
The apparatus becomes hot.
How can one tell how much reactant will be used in a reaction?
from a balanced chemical equation
