Answer:
250L
Explanation:
Data;
V1 = 200L
P1 = 10atm
T1 = 400K
T2 = 100K
P2 = 2atm
V2 = ?
To solve this question, we'll have to use the combined gas equation which is a combination of Boyle's law, Charles law and pressure law.
From combined gas equation,
(P1 × V1) / T1 = (P2 × V2) / T2
P1 × V1 × T2 = P2 × V2 × T1
Solve for V2,
V2 = (P1 × V1 × T2) / P2 × T1
V2 = (10 × 200 × 100) / (2 × 400)
V2 = 200,000 / 800
V2 = 250L
The final volume of the gas is 250L
Answer:
Sounds like Wikipedia would be a good place to start for most of this information.
To balance the reaction, we look at the number of atoms of each element we have. It should be equal for both sides. The balanced reaction is:
<span>
Al2(SO4)3 + 3Ca(OH)2 = 2Al(OH)3 + 3CaSO4
The ratio of calcium hydroxide and aluminum hydroxide is 3:2.</span>
Aw, I hope I can help.
1) C
(A meter stick is the only form of measurement that measures distance)
2) C
(other metric units all correspond with other forms of measurement)
3/4) I can’t measure the line physically from my phone but I think you’d be alright!
5) B
(a triple beam balance measures mass!)
6) B
(corresponds with triple beam balance)
7) A: 34.5g B: 104.3g C: 132.5g
8) C
9) A
(a graduated cylinder is the only form of measurement that measures volume)
10) A
(corresponds with a graduated cylinder!)
All compounds are molecules because a molecule is 2 or more substances/elements combined and a compound is 2 or more elements combined. But not all molecules are elements because some molecules are just combined substances with no elements combined at all.
