Don't know how this found its way onto a maths page! Chemically it's accurate.
k = 14/43
5k
2k + 17 = 32k = -14k = -7
k=4
36.64
Yes it does so violently. 2K + 2HNO3 --> 2KNO3 + H2 + heat
2k + 3 = 11(- 3 from both sides)2k = 8(divide both sides by 2)k = 4
Potassium will react with nitric acid to produce potassium nitrate and hydrogen gas. 2K + 2HNO3 --> 2KNO3 + H2
(2k + 3) (2k + 3)
8k +2k + 7 = 10k + 7
2k - 1 = 0 Add 1 to both sides: 2k = 1 Divide both sides by two: k = 0.5
35 + 2k = 9k subtract 2k from each side 35 + 2k - 2k = 9k - 2k 35 = 7k divide both sides integers by 7 35/7 = (7/7)k 5 = k check in original equation 35 + 2(5) = 9(5) 35 + 10 = 45 45 = 45 checks out