To answer this item, we let x be the amount of the solution
that is 9% vinegar in mL and y be the amount of the solution that is 14%
vinegar, also in mL. The system of linear equation that would best allow us to
answer this item is,
<span> x
+ y = 290</span>
<span> 0.09x
+ 0.14y = 0.13(290)</span>
<span>The values of x and y in the equations are 58 and 232.
Thus, the amounts of the 9% vinegar solution and 14% vinegar solution are 58
and 232 mL, respectively. </span>
Answer:
Explanation:
Hello,
Based on the given reaction, since magnesium and water are in a 1:2 molar ratio at the reactants, we must apply the following stoichiometric factors to compute the complete reaction of the 6.0 g of magnesium:
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Answer:
The correct answer is 0.89 mol.
Explanation:
At STP (Standard Temperature and Pressure) conditions, 1 mol of an ideal gas occupies a volume of 22.4 L. If we assume STP conditions, we can consider a convertion factor of 1 mol/22.4 L to convert the volume of NO₂ from liters to moles:
20,00 L x 1 mol/22.4 L = 0.89 mol
So, at STP, we would have 0.89 mol of NO₂
They are help together by the strong nuclear force from neutrons
The complete chemical formula for the unknown compound will be 
<h3>Chemical formula</h3>
The chemical formula of the compound is 
and x is supposed to be a whole number.
In the analysis, C = 2.22 moles and H = 6.7 moles
Dividing both by the smallest: C = 1 and H = 3
Thus, the empirical formula of the compound will be 
But since the compound is , it means both C and H are multiplied by 2.
The chemical formula will, therefore, be
More on chemical formulas can be found here: brainly.com/question/11995171
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