B is the right answer because it’s a double replacement reaction and the potassium is balanced with the sulphate
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The correct formula for potassium nitrite is KNO2.
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Answer:
The correct answer is b. 1280 cm^2
17) 8.4 / 20 x 100
18) 20 . 0.5150
19) 6,50% because (as you said) the law of definite proportions states that regardless of the amount, a compound is always composed of the same elements in the same proportion by mass
