Can someone help me??? Its for Science Fair I need to write a Rationale
My project is on candles and wax.
If it'll help, here is my hypothesis: If the waxes being tested are beeswax, palm wax, paraffin wax, and soy wax, then the palm wax should burn the slowest and last the longest.

OK, you can say:

Waxes are a diverse class of organic compounds that are lipophilic, malleable solids near ambient temperatures. They include higher alkanes and lipids, typically with melting points above about 40 °C (104 °F), melting to give low viscosity liquids. Waxes are insoluble in water but soluble in organic, nonpolar solvents. Natural waxes of different types are produced by plants and animals and occur in petroleum.

And for more explanation you can visit

https://en.m.wikipedia.org/wiki/Wax

Explanation:

If the waxes being tested are beeswax, palm wax, paraffin wax, and soy wax, then the palm wax should burn the slowest and last the longest. Beeswax is probably the oldest candle making wax; many would argue that it is also the best wax for candles. Beeswax candles were even found in the pyramids.

the answer is c. nacl