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timofeeve [1]
2 years ago
13

Help this is due today!!!

Chemistry
1 answer:
Nookie1986 [14]2 years ago
7 0

Answer:

a) Fe

b) Fe

c) Fe

Explanation:

When using their stoichiometric ratios, in all of the the iron will run out before the oxygen, making the iron the limiting reactant.

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Question 9 (5 points)
frozen [14]

Answer:

A. air pressure,this is answer.

5 0
2 years ago
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The temperature is -14°C the air pressure in an automobile tire is 149K PA if the volume does not change what is the pressure af
Jet001 [13]

Answer: The pressure after the tire is heated to 17.3°C is 167 kPa

Explanation:

To calculate the final temperature of the system, we use the equation given by Gay-Lussac Law. This law states that pressure of the gas is directly proportional to the temperature of the gas at constant pressure.

Mathematically,

\frac{P_1}{T_1}=\frac{P_2}{T_2}

where,

P_1\text{ and }T_1 are the initial pressure and temperature of the gas.

P_2\text{ and }T_2 are the final pressure and temperature of the gas.

We are given:

P_1=149kPa\\T_1=-14^0C=(273-14)=259K\\P_2=?=27.5psi\\T_2=17.3^0C=(273+17.3)=290.3K

Putting values in above equation, we get:

\frac{149}{259}=\frac{P_2}{290.3}\\\\P_2=167kPa

Hence, the pressure after the tire is heated to 17.3°C is 167 kPa

4 0
3 years ago
Which of the following is an example of a model?
Ivanshal [37]

Answer:

U

Explanation:

UUUUUUUUUUUUUU

8 0
2 years ago
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the reversible reaction N2(g) 3H2(g) <--> 2NH3(g) produces ammonia, which is a fertilizer. At equilibrium, a 1L flask cont
Alik [6]

Answer:

Explanation:

the chemical equilibrium constant can be easily calculated since the concentrations at equilibrium are given.the calculation shows the value of Kc for the reversible reaction and forward reaction

Download pdf
7 0
3 years ago
You find small pieces of ice instead of ice cubes in the freezer. State how this is possible.
Nat2105 [25]
Well, if u had a spilled liquid in there (we'll simply go with water) and you had the freezer at a cold temperature it would change (like,icycles on trees when it's snowing)
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3 years ago
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