Chemical weathering can be caused by rain water reacting with the mineral grains in rocks, which form to create new minerals and soluble salts.
Answer:
There are 1.8 moles of aluminum.
Explanation:
To solve this problem we need to convert moles of pyrophillite (Al₂Si₄O₁₀(OH)) into moles of aluminum (Al):
- In one mol of Al₂Si₄O₁₀(OH) there are two moles of Al.
With the above information in mind we can now <u>do the conversion</u>:
- 0.900 moles Al₂Si₄O₁₀(OH) * = 1.8 mol Al
Thus the answer is that there are 1.8 moles of aluminum.
Answer:
The molarity of the Pb(NO3)2 solution is 0.24 M
Explanation:
Assuming there was no loss during filtration, we can calculated amount of moles Pb(NO3)2 from the 13.25 g of PbCl2 ussing molar mass of PbCl2
13.25 g / 278.1 g = 0.04 moles of PbCl2
According balanced equation 2NaCl + Pb(NO3)2 = 2NaNO3 + PbCl2, 1 mol of Pb(NO3)2 produces 1 mol of PbCl2. So, 0.04 moles of Pb(NO3)2 produces PbCl2
Molarity is = moles of solute/volumen of solution (L)=0.04/0.2= 0.24
I hope my answer helps you
The kinetic energy of the ball b is 12.3kJ and ball B to a is 14.2kj
<span>The correct answer should be Oak becaue of the climate. Spruces usually grow in places that are really cold, the more north you go the higher the chance of finding a spruce forest. South of it is usually an Oak forest because the climate is warmer and oaks grow in warmer climates that are not as harsh as those with spruces.</span>