3 years ago

CAN SOMEONE go through this with me pleaseeeSTEP BY STEP AND TELL ME THE ANSWERS!!!thx

Chemistry

1 answer:

tigry1 [53]3 years ago

8 0

Answer:

the answer would be runner A ,because they were ahead of all the other runners and runner A got there before the other runner so runner A has the fastest average speed

Explanation:

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hat is the pressure of CO(g) in equilibrium with the CO2(g) and O2(g) in the atmosphere at 25 ????C? The partial pressure of O2(

Lubov Fominskaja [6]

Answer:

The partial pressure of CO is 5.54x10⁻⁴⁹atm. You shouldn't worry because it is very low pressure

Explanation:

First, the balanced reaction is:

CO + 1/2O₂ → CO₂

The energies of formation are:

ΔG(CO)=-137.168kJ/mol

ΔG(O₂)=0

ΔG(CO₂)=-394.359kJ/mol

The energy of the reaction is:

$delta-G_{reaction} =delta-G_{CO_{2} } -(delta-G_{CO} +1/2delta-G_{O_{2} } )\\delta-G_{reaction}=-394.359-(-137.168+0)=-257.191kJ/mol$

The expression for calculate the partial pressure of CO is:

$p_{CO} =\frac{p_{CO2} }{p_{O_{2} }^{1/2}*exp^{-\frac{delta-G}{RT} } } \\p_{CO}=\frac{3x10^{-4} }{0.2^{1/2}*exp(-\frac{-257.191*1000}{8.314*298} ) } \\p_{CO}=5.54x10^{-49} atm$

5 0

3 years ago

The basic repeating structural unit of a crystalline solid is called a _____. cell unit base unit unit cell lattice

aliina [53]

Unit Cell is the basic <span>repeating structural unit of a crystalline solid .</span>

8 0

3 years ago

Help asap. picture below.

Rashid [163]

Answer:

C. If a solar cell breaks, it releases chemicals and can harm humans.

Explanation:

Hope this helped! :)

3 0

3 years ago

If you burn 59.1 g of hydrogen and produce 528 g of water , how much oxygen is reacted

shtirl [24]

Hydrogen + oxygen --> water
59,1g + x = 528g
528g - 59,1 = x
x = 468,9g

8 0

3 years ago

Zepler [3.9K]

Answer:2170

Explanation:

8 0

3 years ago