Scottish Highers Chemistry Getting the most from Reactants: Given the reaction: $$xP_{H

Given the reaction: $$xP_{H_4} + yO_2 \rightarrow P_{o_{10}} + zH_2O$$ The equation is balanced when: A $x = 1$, $y = 5$, $z = 4$ B $x = 4$, $y = 6$, $z = 2$ C $x = 2$, $y = 7$, $z = 4$ D $x = 2$, $y = 5$, $z = 2$ - Scottish Highers Chemistry - Question 6 - 2017

Question 6

$Given-the-reaction:--$$xP_{H_4}-+-yO_2-\rightarrow-P_{o_{10}}-+-zH_2O$$--The-equation-is-balanced-when:-A--$x-=-1$,-$y-=-5$,-$z-=-4$-B--$x-=-4$,-$y-=-6$,-$z-=-2$-C--$x-=-2$,-$y-=-7$,-$z-=-4$-D--$x-=-2$,-$y-=-5$,-$z-=-2$-Scottish Highers Chemistry-Question 6-2017.png$

Given the reaction: $$xP_{H_4} + yO_2 \rightarrow P_{o_{10}} + zH_2O$$ The equation is balanced when: A $x = 1$, $y = 5$, $z = 4$ B $x = 4$, $y = 6$, $z = 2$ C ... show full transcript

Worked Solution & Example Answer:Given the reaction: $$xP_{H_4} + yO_2 \rightarrow P_{o_{10}} + zH_2O$$ The equation is balanced when: A $x = 1$, $y = 5$, $z = 4$ B $x = 4$, $y = 6$, $z = 2$ C $x = 2$, $y = 7$, $z = 4$ D $x = 2$, $y = 5$, $z = 2$ - Scottish Highers Chemistry - Question 6 - 2017

Step 1

Identify the Balanced Equation

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Answer

To determine the appropriate values of x, y, and z that balance the given chemical equation, we need to ensure that the number of atoms of each element is the same on both sides of the equation.

Step 2

Substitute Each Option

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Answer

Let's evaluate the provided options:

For option A: $x = 1$ , $y = 5$ , $z = 4$ .
- Lefthand Side (LHS): 1 P + 10 H + 10 O = 1 P + 5 O = 10 H
- Righthand Side (RHS): 1 P + 4 H + 10 O = 1 P + 5 O = 10 H
Balancing appears correct.
For option B: $x = 4$ , $y = 6$ , $z = 2$ .
- This results in an imbalance of O. This option can be disregarded.
For option C: $x = 2$ , $y = 7$ , $z = 4$ .
- Results in an imbalance as well. Again, it does not satisfy.
For option D: $x = 2$ , $y = 5$ , $z = 2$ .
- This shows an imbalance upon reviewing; hence it is incorrect.

Step 3

Final Answer

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Answer

The correct choice is C: $x = 2$ , $y = 7$ , $z = 4$ .

Given the reaction: $$xP_{H_4} + yO_2 \rightarrow P_{o_{10}} + zH_2O$$ The equation is balanced when: A $x = 1$, $y = 5$, $z = 4$ B $x = 4$, $y = 6$, $z = 2$ C $x = 2$, $y = 7$, $z = 4$ D $x = 2$, $y = 5$, $z = 2$ - Scottish Highers Chemistry - Question 6 - 2017

Worked Solution & Example Answer:Given the reaction: $$xP_{H_4} + yO_2 \rightarrow P_{o_{10}} + zH_2O$$ The equation is balanced when: A $x = 1$, $y = 5$, $z = 4$ B $x = 4$, $y = 6$, $z = 2$ C $x = 2$, $y = 7$, $z = 4$ D $x = 2$, $y = 5$, $z = 2$ - Scottish Highers Chemistry - Question 6 - 2017

Identify the Balanced Equation

Substitute Each Option

Final Answer

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