Answer:
0.967mole
Explanation:
Given parameters:
Volume of NH₄Cl = 21.67L
Unknown:
Number of moles = ?
Solution:
We assume that the volume was taken at standard temperature and pressure,
Then;
Number of moles = 
Number of moles = 
= 0.967mole
Answer:
Convex mirrors are more study than flat mirrors.
Explanation:
This is the correct answer because i have already studied this
Answer:
56°
Explanation:
First calculate 
The interplanar spacing can be calculated from:
The diffraction angle is determined from:
Solve for 
The diffraction angle is:
Al(NO3)3(aq) + 3NaOH(s) --> Al(OH)3 (s) + 3NaNO3 (aq)
The precipitate here is Al(OH)3 (s), since the solid reactant is the precipitate in the aqueous solution. Usually, it is okay to assume in basic chemistry that the transition metal is going to be part of the compound that is the precipitate, especially in an acidic salt and a strong base reaction that we have here.
Answer:
The correct answer is A
Explanation:
That water stops moving once it gets to the dam and turns into potential energy
