Answer:
Cr2O72- + 5Fe2+ +14H+ -> 2Cr3+ + 5Fe3+ +7H2O
Explanation:
Fe2+ is oxidized to Fe3+ and Cr6+ is reduced to Cr3+
Answer:
the last one is c and the other ones are aa
Explanation:
Answer: BI
because of rection progress
Explanation:
Answer:- 0.800 moles of the gas were collected.
Solution:- Volume, temperature and pressure is given for the gas and asks to calculate the moles of the gas.
It is an ideal gas law based problem. Ideal gas law equation is used to solve this. The equation is:
PV=nRT
Since it asks to calculate the moles that is n, so let's rearrange this for n:
V = 19.4 L
T = 17 + 273 = 290 K
P = 746 mmHg
we need to convert the pressure from mmHg to atm and for this we divide by 760 since, 1 atm = 760 mmHg
P = 0.982 atm
R =
Let's plug in the values in the equation to get the moles.
n = 0.800 moles
So, 0.800 moles of the gas were collected.
Answer:
Hey
You.
You emit infered light via heat.
The sun
The sun emits <em><u>all</u></em> frequincies of light, but mostly yellow light.
Your microwwaves
As your food gets hotter the microwwaves shake up the water molecules because they are the perfect frequincy to do so.
Wbob1314