The answer to this question is Contact
depending on the geological event that put into place, this will have a specific semantic value.
A contact usually represented by different kind of lines on the geological map and usually use to determine <span>where rocks come into contact across fault zones</span>
6. Put a 2 before H2O, and a 4 before HF
7. Just put a 2 before HCI
8. I can't seem to figure this one out...sorry. I can keep trying if you want tho...
9. Put a 2 before HNO3 and a 3 in front of O2
10. I think you just put a 2 in front of H2O.
I tried my best. I hope I got at least one right...I started this stuff yesterday..good luck
Answer:
1. How do metals and non-metals react with acids?
Ans : Non metals does not react with acids while metals react with acids and produce hydrogen gas that burns with a 'pop'sound.
2. Write and explain the chemical equation for the reaction of magnesium with sulphuric acid and aluminium with hydrochloric acid.
Magnesium + sulphuric acid = Hydrogen + salt
Mg(s) + H2SO4 (aq) MgSO 4(aq) +H2 (g)
Aluminium + Hydrochloric acid = Hydrogen + Aluminium chloride
2Al(s)+6HCl(aq)→2AlCl3(aq)+3H2(g)
Answer:
Protons, Neutrons, and Electrons
Explanation:
It is endothermic and the ∆H = +393.5 kJ.
