Answer:
the number of protons and neutrons in an atom
Explanation:
To find the atomic number you just have to add the protons to neutrons.
Answer:
I'm pretty sure its a combination reaction!!
Explanation:
they generally form between metals and non metals like that^
1. Change in color
2. Formation of bubbles
3. Formation of a precipitate
4. Begins to make an odor
One reason may be that iron is a much heavier metal, and a much better conductor of heat and electricity. Iron would lead to some issues after a while, and repairs may end up costing more than it would have cost to just buy aluminum in the first place.
So, basically just because of each one's different ability to conduct heat and electricity.
I think its C not 100% sure tho