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lord [1]
3 years ago
15

Help plsssssss... 3C(s) + 2Fe2O3 (5) ► Fe

Chemistry
2 answers:
jek_recluse [69]3 years ago
7 0

Answer:

Single displacement.

Explanation:

This is because Iron (Fe) was "switched" with C and this being the only "switch" in the equation makes it a single displacement.

blondinia [14]3 years ago
6 0

Answer:

single displacement

Explanation:

the Fe was switched out with the C. they are the only ones that switched, making it a single displacement

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300.0 mL of a gas is at a pressure of 5.00 atm. What is the volume of the gas at 2.00 atm?
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A 93-L sample of dry air is cooled from 145 oC to -22 oC at a constant pressure of 2.85 atmospheres). What is the final volume?
Aloiza [94]

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Explanation: Please see attachment for explanation.

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3 years ago
When 167.2 joules of heat is added to 4.00 grams of water at 10c the resulting temperature is what
Katena32 [7]
Q=mc \Delta T \\\\
Q=168,2J\\
m=4g\\
c=4.184\frac{J}{g^{o}C}\\\\
\Delta T=\frac{Q}{mc}=\frac{167,2J}{4g*4,184\frac{J}{g^{o}C}}=9,99^{o}C\\\\
\Delta T = T_{f}-T_{i}\\\\
9,99^{o}C=T_{f}-10^{o}C\\\\
T_{f}=9,99^{o}C+10^{o}C=19,99^{o}C\approx20^{o}C
5 0
3 years ago
Please help fast, I will give brainliest.
frez [133]

Answer:

The reaction is favorable at all temperatures

Explanation:

Since G = H - TS, -H and +S would result in G = -H -TS, which will always be negative.

7 0
3 years ago
You have a stock solution that is 226mg/mL and you need 10mL of a working solution that is 15mg/mL. What is the volume of stock
xenn [34]

Answer: 0.67 ml

Explanation:

According to the dilution law,

C_1V_1=C_2V_2

where,

C_1 = concentration of stock solution = 226 mg/ml

V_1 = volume of stock solution = ?

C_2 = concentration of working solution= 15 mg/ml

V_2 = volume of working solution= 10 ml

Putting in the values we get:

226mg/ml\times V_1ml=15mg/ml\times 10ml

V_1=0.67ml

Thus volume of stock solution needed to dilute to have 10mL of working solution at the above concentration is 0.67 ml

6 0
3 years ago
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