Your instructor is probably expecting the answer B) III only.
III) The evolution or <em>absorption of heat</em> is evidence of a <em>chemical change</em>.
I) Boiling water and IV) mixing paint are <em>physical changes</em>.
II) A change in colour on mixing is usually an indication of a reaction (but not when mixing paint). However, in this case, the lighter blue colour might have happened simply because you are diluting the solution. You would have to do an experiment which is correct.
Explanation:
<h2>A. Calculating the molar mass of the ending compound.</h2>
Answer:
It may blow your eardrums, or affect your hearing in other ways.
hope this helps! plz mark brainliest :)
The question is in incomplete, so here is the complete question:
Nucleic acids are polymers of just 4 different monomers in a linear arrangement. How many different nucleic acid polymer sequences are possible when the polymer contains 30 monomers?
Polymers are biomolecules formed by monomers. For nucleic acid, like DNA and RNA, as 4 monomers are necessary to "create" 1 polymer, a polymer containing 30 monomers can "produce" 7 different nucleic acid sequences.
The answer is D. This is because you can observe that gravity pulls things downward, it is not contradicted by data and we are always continuing to experiment with the laws of science.
