Answer:
The correct answer is a hypothesis.
Answer:
4Al + 3O₂ → 2Al₂O₃
Explanation:
4Al + 3O₂ → 2Al₂O₃
Only this reaction above obeys the law of conservation of mass. The others flout the rule.
The law of conservation of mass states that "matter is neither created nor destroyed in a chemical reaction but are simply transformed from one form to another".
By this law, the number of atoms on both sides of expression must be the same;
Number of atoms
Elements Left hand side Right hand side
Al 4 4
O 6 6
Answer: asd asd asd asdasdasdasd
A measure of the polarity of the molecule(s)
A lunar eclipse occurs when the Earth moves between the Moon and the Sun. a lunar eclipse does not occur during each full moon because the earth does not cross between the sun and the moon, it does not always happen. Also, a lunar eclipse doe not have to happen on a full moon, they are two different phenomenas .
