The rocky outer layer of Earth's<span> surface. The two types of </span>crust<span> are continental and oceanic. The layer of solid, </span>brittle<span> rock that makes up the </span>Earth's<span> surface. The lithosphere is composed of the </span>crust<span> and the uppermost mantle</span>
I used to know this. I don't really remember but is used to know it. Im in 6th grade now
Heterogenous mixtures are unevenly mixed. Like oil and vinegar in vinaigrette if it is not emulsified well enough and they separate. Any case where two things are not evenly distributed within each other.
Homogenous mixtures are evenly mixed throughout. Like salt water or kool-aid (when it's mixed).
Hope this helps!
1) Chemical equation
2Al + 6 HCl ---> 2Al Cl3 + 3 H2
2) molar ratios
2 mol Al : 3 moles H2
3) Proportion
2 mol Al / 3mol H2 = x / 9 mol H2
4) Solve for x
x = 9 mol H2 * 2 mol Al / 3 mol H2 = 6 mol Ag
Answer: 6 moles
