Observation of a change in the appearance of the metal, such as discoloration or formation of a patina. Production of bubbles or gas, indicating a chemical reaction is occurring. Increase in temperature or release of heat during the reaction.
Changes in color: If the color of the reactants or products changes during the reaction, it is a sign that a chemical reaction has occurred. Formation of a gas: Production of gas bubbles or fizzing indicates a chemical reaction, such as in the reaction between an acid and a carbonate. Changes in temperature: If the reaction absorbs or releases heat, causing a change in temperature in the surroundings, it signals a chemical reaction has taken place.
To answer it, you have to imagine small particles in a solution. Let's take a simple reaction like A + B -> C To react, A and B have to bump each others. If you heat the solution, atoms will move faster, so you will increase the probability of having shocks between A and B, then you will speed the reaction. It's simplified, but it almost explains what really happens.
Catalysis is the use of a catalyst in a reaction.Certain substances, called catalysts, can increase the rate of a reaction without being consumed by it.An example is the decomposition of H2O2: 2222(aq)22Catalysts can be described as being homogeneousor heterogeneous.Homogeneous: reaction takes place within a single phase, as in the example above with the H2O2.Heterogeneous: reaction involves two different phases, as in the example that follows. 2N2O ----> 2N2 + O2 - this reaction is usually slow, but if the reactants are bought into contact with a metal such as gold, the reaction speeds up considerably.A catalyst lowers the activation energy required for the reaction. Let me know if this helped or if there is a certain thing that you need me to cover about it.
They let out a gas like carbon dioxide and some very poisonous chemicals
Initially, Calypso becomes angry, but does not want to anger the gods by disobeying and ultimately agrees to let him go.
Initially, Calypso becomes angry, but does not want to anger the gods by disobeying and ultimately agrees to let him go.
Reaction and Review - 2011 Let My Puppets Come 1-19 was released on: USA: 21 June 2011
You may be having a bad reaction to too much sun. I would go see your family physician or dermatologist. Don't let this go, for you may be having an allergic reaction to too much sun.
They first gave Polyphemus (the cyclopes) wine, so he became drunk and fell asleep. Then they took the stake and stabbed him in the eye, blinding him. Then they clung onto the bellies of the sheep and rams, so Polyphemus wouldn't feel them as he let them through. Then they took some of the herd and left
You can let looae by having fun. Dancing and hanging with your friends will help.
They first gave Polyphemus wine, so he became drunk and fell asleep. Then they took the stake and stabbed him in the eye, blinding him. Then they clung onto the bellies of the sheep and rams, so Polyphemus wouldn't feel them as he let them through. but as Poseidon was Polythemus's farther he cursed the rest of the voyage.
Athena told her father Zeus that Odysseus wanted to go home to see his wife and son so Zeus told Hermes to go and tell Calypso to let Odysseus leave her island. She agreed and told Odysseus to make a boat and she gave him food and wine for his journey
Fuel tends to explode or let the fire spread when it is lit.
sad
If the forward reaction is exothermic then the back reaction would be endothermic. This happens because it upholds the law of conservation of energy, which says that energy cannot be created or destroyed.
To let people know that you are having a party/ celebration when and where the party is, and how to let you know that they are coming to celebrate with you.