I don’t know if this is right but I thing It’s B
Answer:
A). Calcium chloride dihydrate (CaCl2 * 2H2O) slowly heated in a crucible to become calcium chloride (anhydrous).
Dehyration is a physical process
B). A hydrocarbon such as propane (C3H8) undergoes combustion to power a grill
Combustion is a chemical process.
C). A rock climber’s rope becomes frayed and turns the color of the rocks
This is physical process
D). A dog urinates on an air conditioner coil and the coil becomes corroded
Corrsion is a chemical process.
Explanation:
Downbursts are damaging winds<span> localized in an area which are caused by air that flows downward rapidly out from a thunderstorm. They can cause severe damage to infrastructures and can cause casualties when not prepared. This becomes worse as these types penetrate in areas near the ground. </span>
Answer:
v2=40.35L
Explanation:
p1v1/t1=p2v2/t2
v2=t2p1v1/t1p2
v2=984*760*22.4/273.15*1520
v2=40.35 L
2H2 + O2 -> 2H2O.
BALANCED SKELETON EQUATION
