Someone Please help me Im gonna fail. After Losing control, a hot air balloon is a drift on the wind and travels north for 3.2 km. The Wind shifts and blows the balloon south for 12.7 km. After one more shift, it blows North for another 8.8 Km.
What is the magnitude of the resultant displacement of the hot air balloon. PLEASE HELP ME

  the grams     of oxygen gas   that can be produced     is 20.6   grams of o₂

calculation

2liclo₃ →   2 licl + 3 o₂

step 1:   find the moles of liclo₃

moles = mass÷ molar mass

from periodic table the molar mass of liclo₃ =6.9 +35.5   +(16 x3) =90.4 g/mol

moles=38.7 g÷90.4 g/mol=0.4281   moles

step 2:   use the   mole ratio   to calculate the moles of o2

from equation above, liclo₃: o₂   is 2: 3  

therefore the moles of   o₂=0.4281 moles x3/2 =0.6422   moles

step 3: find mass   of o₂

mass= moles x molar mass

from periodic table the   molar mass of   o₂ = 16 x2= 32 g/mol

mass=0.6422   moles   x   32 g/mol = 20.6 grams of o₂

the electric field is a “force field” around a charged object that illustrates the direction the electric force would push an imaginary 

float.

archimedes' principle

denser than water sinks in water.

denser than mercury would sink in it