Answer:
The answer to your question is the letter d) 16700 joules
Explanation:
Data
mass = m = 86.8 g
temperature 1 = T1 = 40°C
temperature 2 = T2 = 86°C
heat capacity = 4.18 J/g°C
Process
1.- Write the formula to calculate Heat (Q)
Q = mC(T1 - T2)
2.- Substitution
Q = (86.8)(4.18)(86 - 40)
3.- Simplification
Q = (86.8)(4.18)(46)
4.- Result
Q = 16689.9 Joules ≈ 16700 joules
C. losing one electron
It is because the potassium atom electronic configuration is 2,8,8,1 where by if it loses one electron it becomes stable
The answer should be B - Nitrogen Dioxide.
