Which solution could you prepare by dilution?
a. 400 milliliters of 2.50 molar solution from a 2.00 molar stock solution
b. 600 milliliters of 3.00 molar solution from a 2.50 molar stock solution
c. 700 milliliters of 4.50 molar solution from a 3.00 molar stock solution
d. 900 milliliters of 3.50 molar solution from a 4.50 molar stock solution me understand this question. : )

Which element in the third period would you expect to have the larger atomic radius, sodium (na) or sulfur (s)? a. sodium, because it has a higher effective nuclear charge attracting electrons in fewer energy levels. b. sodium, because it has fewer protons attracting electrons in the same energy levels. c. sulfur, because it has more protons attracting electrons in more energy levels. d. sulfur, because it has a higher effective nuclear charge attracting electrons in the same energy levels.

What is the result of multiplying (2.5 × 1010) × (2.0 × 10-7)? a. 5.0 × 103 b. 5.0 × 10-3 c. 5.0 × 1017 d. 5.0 × 10-17

Which are examples of how technology has advanced scientific understanding.1using hot water to sterilize medical equipment.2transplanting a human organ into another individual.3inserting genes from one sheep into another cell to make a cloneunderstanding the different structures that make up a cell.4examining microorganisms from the deepest parts of the ocean