For parallel resistors:

equivalent resistance: 85.7 ohms
for total circuit:
85.7 + 220 = 305.7ohms
There are 3500 ms in 3.5 s
Answer:
1 mole of P₄ consumed:4 moles of PBr₃ produced
Explanation:
Look at the coefficients in the balanced chemical equation to determine the ratios. For every 1 mole of P₄ consumed (P₄ has a coefficient of 1), 4 moles of PBr₃ would be produced (PBr₃ has a coefficient of 4).
The answer is true, particles in the gaseous state are the furthest apart