Ohm’s law is represented by the equation i = v/r. explain how the current would change if the amount of resistance decreased and the voltage stayed the same.

The current is proportional to the voltage and inversely proportional to the resistance. This mean if the resistance decreased and the voltage stayed constant, the current will increase.

Explanation:

Let's star with a closed circuit with a constant voltage of 48V, and a variable resistor selector of 6, 4 and 2 Ohms.

Using Ohm's Law equation

With the variable resistor selector on 6 Ohms

Changing the selector to a 4 Ohms

Last, changing the selector to a 2 Ohms

explanation:

newton's third law, for every action there is an equal and opposite reaction.

  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