Juan likely made a mistake by not following proper safety protocols while heating chemical A. This could include not wearing appropriate personal protective equipment such as gloves or goggles, not using the correct heating apparatus, or not monitoring the temperature carefully. Additionally, Juan may have overheated the chemical, leading to a potential reaction or release of harmful fumes. It is crucial to always adhere to safety guidelines when working with chemicals to prevent accidents and ensure personal safety.
This is a chemical reaction; oxygen is released.
Heating is a physical process.
Heating is a chemical phenomenon.
Heating can be due to a chemical change, for example burning a fuel is in effect a chemical reaction with oxygen. Also some chemical reactions are exothermic, ie they produce heat. Not so many produce cooling, but one is the combination of ice and salt.However heating and cooling happen for other reasons as well, so you can't say they are examples of chemical changes. It is correct to say that some chemical changes result in heating and cooling.
Heating not; but distillation, sublimation, zone refinig, etc. need heat.
Heating a frying pan is a physical change. A chemical change is when you change the chemical properties. Heating the pan is only changing the temperature of the pan not the chemical make up.
This is a chemical reaction; oxygen is released.
Heating is a physical process.
physical or chemical
physical or chemical
It is not a chemical change, unless you heat it sufficiently to make it catch fire.
CHEMICAL:)
wrong answer
no
Heating is a physical change.
Heating is a physical process.
Yes, heating red lead in a test tube is a chemical change. The process of heating causes the red lead to undergo a chemical reaction, leading to a change in its chemical composition. This change is irreversible.