From the middle of the periodic table, in which direction would you look to find the most reactive substances?
1.up
2.down
3.left
4.right

How many atoms of mg are present in 97.22 grams of mg? 6.022 × 1023 2.408 × 1024 4.818 × 1024 5.855 × 1025

Which change in temperature is the smallest? a change of 1 thomson degree a change of 1 kelvin degree a change of 1 fahrenheit degree a change of 1 celsius degree

Wind and moving water provide energy. chemical mechanical thermal none of the above