Hope this helps solve your problem!
In order to balance an equation, we apply the principle of conservation of mass, which states that mass can neither be created nor destroyed. Therefore, the mass of an element before and after a reaction remains constant. Here, the balanced equation becomes:
4Al + 3O₂ → 2Al₂O₃
The coefficients are 4, 3 and 2.
A is your answer.
On the periodic table the atomic number is the number of protons inside the nucleus.
Answer:
D
Explanation:
The longer handles distribute the force across a longer distance.
