The number is 25. The square root of 25 is 5 and 5x2 is 10 and then 10+5 is 15
Answer:
The importance of significant figures
As stated before, it is important within the science fields that you are not more precise or accurate than the least accurate or precise number. In science, it is generally agreed upon that the last number digit in any figure is filled with uncertainty.
Explanation:
Answer:
Fluorine
Explanation:
It is a non-metal does not conduct electricity
2.5X20=50g
50g should be the right answer
Mass=volumeXdenisty.
<span>2.51 grams
You want to prepare 19.16 g of some solution which will have 13.1% of it's mass being sucrose. So we just need to perform some simple multiplication:
19.16g * 0.131 = 2.50996g
Rounding to 3 significant figures gives 2.51 g.</span>
