Answer:
NO.3) Mass of Al2O3 formed = 229.5g
The answer is either A or C. Sorry I'm not much help :)
Combustion will cause a chemical change in paper.
This is because the carbon compounds are being oxidized into carbon dioxide and water vapour (or h2o, same thing).
Transfer and gain of kinetic energy by the water molecules takes place as water cycles from the bottom of the pot toward the top.
<h3>What is thermal energy?</h3>
Thermal energy is a another word to express the heat energy.
When we boil a water over a gas burner then due to convention, heat energy can be transfer to the bottom water molecules in the form of thermal energy. After gaining the thermal energy movement of water molecules increases as a result of the increase of the kinetic energy.
Hence, option (1), (2) & (4) are correct i.e. transfer and gain of kinetic energy by the water molecules is done.
To know more about thermal energy, visit the below link:
brainly.com/question/19666326
Answer:
12
Explanation:
alkyne formula is CnH2n-2
heptyne = 7
