Answer:
159.7 grams Fe2O3
Step-by-step explanation:
The balanced equation tells us that CO, not CO2, reacts with Fe2O3. The answer below assumes that <u>CO</u>, was intended in the phrase "react with 3.0 moles of CO2."
Fe2O3 + 3CO ---> 2Fe + 3CO2
<u>React with 3.0 moles of </u><u>CO</u><u>. </u>
The equation states we need 3 moles of CO for every one mole of Fe2O3 to have a balanced reaction. The molar mass of Fe2O3 is 159.7 grams/mole, so we'd need 159.7 grams of Fe2O3.
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If the statement was meant to read "<u>produce</u> 3.0 moles of CO2:
<u>Produce 3.0 Moles of </u><u>CO2</u>
We would still only need one mole of Fe2O3, so the answer is trhe same as above: 159.7 grams of Fe2O3.
This means that 2n is equal to or greater than -1 +10 or -1-10, which can be shown as 2n ≥ 9 and 2n ≥-11, and since 2n ≥11 encompasses both, we can therefore say 2n ≥-11 or n ≥ -5.5 by dividing both sides by 2
Answer:
You will need to buy 12 feet of border.
Step-by-step explanation:
Answer:
Step-by-step explanation:
The equation of a line
y = mx + c
y - intercept point y
m - slope of the line
x - intercept point x.
c - intercept of the line
Step 1: find the slope
m = y2 - y1 / x2 - x1
Given two points
( -7 , -7) ( -7 , 4)
x1 = -7
y1 = -7
x2 = -7
y2 = 4
Insert the values into the equation
m = 4 - (-7) / -7 -(-7)
m = 4 + 7 / -7 + 7
m = 11/ 0
Step 2: sub any of the two points given into the equation
y= mx + c
y = 11/0x + c
(-7 ,4 )
x = -7
y = 4
4 = 11/0(-7) + c
4 = -77/0 +c
-77/0 is math error which means that the points are not correct