1:) <span>Zn + 2 HCl = ZnCl2 + H<span>2
</span></span>2:) 4 Fe + 3 O2 = 2 Fe2O3
Answer:
Freezing water can break rock without any change in the minerals that form the rock
Explanation:
<h2><u>Hope this helps→←</u></h2>
They didnt have a powerfull enough microscope to see them an when they could they were moving to fast unless they were cold
Its chemical formula H2O, indicates that each of its molecules contains one oxygen and two hydrogen atoms, connected by covalent bonds. The hydrogen atoms are attached to the oxygen atom at an angle of 104.45°. "Water" is the name of the liquid state of H2O at standard conditions for temperature and pressure.
