For a concentration technique, stotal is given as 19.31 ± 0.035, smb is 0.22 ± 0.008, and ka is 0.154 ± 0.007 ppm–1, where stotal is the signal, ka is the method’s sensitivity for the analyte and smb is the signal from the method blank. if we want the overall percent uncertainty to be 2.6%, which statement is false below?
group of answer choices:
a. improving the signal’s uncertainty will improve the overall uncertainty
b. uncertainty in the method’s sensitivity dominates the overall uncertainty
c. we must improve the uncertainty in ka to ±0.004 ppm–1
d. none of the above

electron microscopy and scanning tunneling microscopes gives us a greater understanding of atoms by being able to see the atom itself, and lets us see some atomic reactions.

explanation:

d: the voltage of the secondary coil is less than that of the primary coil.

im not suree sorry if wrong

c. electrical charges of ionic bonds.

answer is: nuclear fusion produces elements that are heavier than helium.

nuclei combine to form a heavier nucleus, releasing energy.  

for example, fusion of hydrogen atoms at the sun.  

this fusion nuclear reaction is in the inner core of the sun and hydrogen (atomic number 1) is conveted into helium (atomic number 2).  

the inner core is the central region of the sun and all solar energy is produced in the core by nuclear fusion.