1,2-methylcyclohexane, 1,3-methylcyclohexane, 1,4-methylcyclohexane
Speed is how fast something is going, velocity is speed and distance, and acceleration is how fast something is speeding up.
Just wright down the definition and some facts about phycology. wright down what you need to live . Wright down how many cells / bones you have in your body. Wright down how you’ve seen people act wether its bad or good. Wright down why you think people act like that . Wright down how the brain thinks( your body depends on your brain). Wright down how you can do breathing techniques to relax your brain. Wright about tension and headaches or about muscle dislodges on/in your head. That should be a complete summary/ essay
Answer:
= 25 ppm
Explanation:
- PPM also refers to parts per million, it represents a low concentration of a solution. It represents 0.001 gram or a milligram in a 1000 mL, which equivalent to 1 mg per liter.
Given; a sample size of 2000 g contained 0.050 g DDT
It means, 2000 mL sample contained 50 mg DDT
Therefore in ppm we get;
= 50 mg/ 2 L
= 25 mg/L
<u>= 25 ppm</u>