Which statement best describes the structure of a lipid molecule? A phospholipid has a charged head and an uncharged tail.
A lipid is made up of a long chain of phosphorus molecules.
Lipids contain proteins and glycerol.
The ends of the lipid are attached to each other.​

There are 6.022, 104 atoms of hg in 1 mole of hg the number of atoms in 45 moles of hg can be found by multiplying 4.5 by 6.022, 102 which is the number of atoms in 4.5 moles of hg, correctly written in scientific notation with the correct number of significant figures? 0 21,109 0 21,100 271, 1024 27.099, 100 mark this and retum save and exit submit

The yearly amounts of carbon emissions from cars in belgium are normally distributed with a mean of 13.9 gigagrams per year and a standard deviation of 5.8 gigagrams per year. find the probability that the amount of carbon emissions from cars in belgium for a randomly selected year are between 11.5 gigagrams and 14.0 gigagrams per year. a. 0.340 b. 0.660 c. 0.167 d. 0.397

In an exothermic reaction, energy may be released to the surroundings in the form of question 4 options: heat light thermal all of the above