Which of theres is the correct unit for speed? a) m/s- meters per second b) j- joules c) n- newtons

Since the speed formula is = Distance / time

speed = distance /time

speed = metre/ seconds

speed = m/s

a) m/s- meters per second

Explanation:

Recall that m/s (meters per second) is the official derived SI unit for speed. That is, it is length (meters) over time (second), hence m/s.

It can't be joules (J), since that is the SI unit for work & energy.

It also can't be newtons (N), since that is the SI unit for force.

Therefore, the correct answer is a) m/s- meters per second.

I hope this made sense to you, if not, feel free to let me know and I can try to provide further assistance.

  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

answer: good job it's all correct !

explanation: