12 pens for writing chemical formulas cost
12*2=24 dollars
12 pads cost
12*3=36 dollars
1)
12*2=24
12*3=36
2)
12*2+12*3=60 dollars
3) 12*(3+5)=60 dollars
<span>Alkyl is a rare compound, and also very confusing.
I'm assuming you meant "propane"...
</span>
<span><span><span>C3H<span>8 = Propane
</span></span>CnH2n+1--
X</span> << Alkyl Halide
X = Cl
Simply set a chemical reaction :
</span>
<span>C3H<span>8 → </span></span><span>CnH2n+1--
X </span>
Answer:
Phosphorus does not exist in the atmosphere. The phosphorus cycle is the series of processes that move phosphorus among Earth systems. phosphorus cycle help move phosphorus through the geosphere, the hydrosphere, and the biosphere. ... Rocks exposed at Earth's surface release phosphates when they weather.
Im pretty sure its melting ice
