Which of the following equations is balanced?
2H2 + 02 - 2H20
2Na + 02 - 2Na20
FeS + HCI - 2FeCl2 + H2S
NH4OH - NH3 + 2H20

2H2 + O2 ->2H2O

Step-by-step explanation:

the correct answer is option c.   3

step-by-step explanation:

points to remember

equation of the line with coordinates (x₁, y₁) and (x₂, y₂) is given by,

slope m = (y₂ - y₁)/(x₂ - x₁)

from the figure we can see a line with two coordinates given

to find the slope of given line

here   (x₁, y₁)   = (-1, -1 ) and (x₂, y₂) = (1, 5)

slope m = (y₂ - y₁)/(x₂ - x₁)

  = (5 - -1)/(1 - -1)

  = (5 + 1)/(1 + 1)

  = 6/2 = 3

therefore the correct answer is option c.   3

{3 + i, 3 - i, 3, -1}

step-by-step explanation: