I think the answer would be C. They are unreactive.
Speed is the absolute value of velocity. Speed being a scalar (magnitude) and Velocity is a vector (magnitude and direction). Both speed and velocity have to deal with magnitude. An example would be that speed would be 15 miles/hour while velocity would be 15 miles/ hour towards the west.
Answer:
A, Hail is large spheres of ice and snow is small flakes of ice.
The final temperature = 36 °C
<h3>Further explanation</h3>
The balanced combustion reaction for C₆H₆
2C₆H₆(l)+15O₂(g)⇒ 12CO₂(g)+6H₂O(l) +6542 kJ
MW C₆H₆ : 78.11 g/mol
mol C₆H₆ :
Heat released for 2 mol C₆H₆ =6542 kJ, so for 1 mol
Heat transferred to water :
Q=m.c.ΔT
First write a balanced equation...
P4 + 5 O2 ⇒ 2P2O5
mole of P4 = 136 ÷ (4×31) = 1.09677
MOLE RATION OF P4 : P2O5 IS 1:2
THAT IS 1 mole of p4 reacts to give 2 moleof p2o5
∴ 1.09677 mole............................. (2×1.09677) =2.19....mole
maximum number of mole = 2.19 mol