Because they did not have the proper technology. Hope my answer was useful.
The group of molecules called nucleotides contain phosphate groups, pyrimidines, purines, and <span>pentose (a 5-carbon sugar). Therefore, E. all of the above is the correct answer.</span>
<span>Because a lot of minerals have the same color</span>
Answer:
0.217 M NaOH
Explanation:
M1V1 = M2V2
M1 = 0.312 M HCl
V1 = 17.4 mL HCl
M2 = ?
V2 = 25.0 mL NaOH
Solve for M2 --> M2 = M1V1/V2
M2 = (0.312 M)(17.4 mL) / (25.0 mL) = 0.217 M NaOH
