1rst question
..The primary function of photosynthesis is to convert solar energy into chemical energy and then store that chemical energy for future use. For the most part, the planet's living systems are powered by this process
Answer:
Explanation:
For this problem, you will have to convert moles to atoms. Use Avogadro's number.
<span>(80.0, 20.0)
The statement states that 80% of the compound is carbon. To acheive the amount of carbon in a 100 g sample, you need to multiply the weight of the sample by the percentage of carbon in the compound. Recall that 80%=80/100=.8
.8*100g=80g of carbon.
The same process goes for the hydrogen. .2*100g=20g hydrogen.</span>
Answer:
True
Explanation:
True
Ethanol is non-toxic, water soluble and biodegradable substance containing 35% oxygen, Ethanol blended fuel contains more oxygen gives more complete fuel combustion and reducing harmful tailpipe emissions. Ethanol displaces toxic gasoline components like benzene, a carcinogen.
Answer: exothermic
Explanation: chemical reactions that release energy is called exothermic, and in this case, more energy is being released. (I THINK)
