Answer:
C, Moves energy.
<u><em>i hope this helped at all. sorry if its incorrect, have a good day.</em></u>
The number 345,000 has 3 significant figures because the trailing zeros are not significant since there's no decimal point.
<h3>What is significant figures?</h3>
Significant figures of a number in positional notation are digits in the number that are reliable and necessary to indicate the quantity of something.
Also significant figures can be defined as, the number of digits in a value, often a measurement, that contribute to the degree of accuracy of the value.
Examples of significant figures;
- 405 = 3 significant figures
- 405000 = 3 significant
- 0.040500 = 5 significant figures
<u>Note:</u> leading zeros are not significant but trailing zeros, which are zeros at the end of a number, are significant only if the number has a decimal point.
345,000 = 3.45 x 10⁵ (3 significant figures)
Thus, the number 345,000 has 3 significant figures because the trailing zeros are not significant since there's no decimal point.
Learn more about significant figures here: brainly.com/question/24491627
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Answer:
b,c and d
Explanation:
The following processes are coupled to the dephosphorylation of ATP
b. the endergonic reaction forming gluco-6-phosphate
c. Myosin action during muscle contraction
d. de novo anabolism of nucleotide
2NaOH + ZnCl2 → 2NaCl + Zn(OH)2
Zn(OH)2 is your precipitate.
No. of moles of NaOH = 2.50X50.0÷1000 = 0.125mol
2mol of NaOH reacted to produce 1 mol of Zn(OH)2.
No. of moles of Zn(OH)2 produced when 0.125mol of NaOH reacted
= 0.125 x 1 ÷ 2
= 0.0625mol
Mass of Zn(OH)2 = 0.0625 x [65.4+2(16+1)] = 6.21g
Answer:
A and c because the temperature is not constant. As we can see in the chart the temp. goes to 0 (ice melts) then goes to 100 (water evaporates).
