For each of the positive ions listed in Column 1, use the periodic table to find in Column 2 the total number of electrons that ion contains. The same answer may be used more than once. Column 1Column 2

Al3+ a. 2

Fe3+ b. 10

Mg2+ c. 21

Sn2+ d. 23

Co2+ e. 24

Co3+ f. 25

Li+ g. 36

Cr3+ h. 48

i. 76

j. 81

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

Problem page a jet airplane reaches 846. km/h on a certain flight. what distance does it cover in 13.0 min? set the math up. but don't do any of it. just leave your answer as a math expression. also, be sure your answer includes all the correct unit symbols.

Which of the following notations would be the appropriate and final way to display the formula for magnesium chloride a. mgcl2 b. mg+2cl–1 c. mgcl2 d. mgcl