In which orbitals would the valence electrons for selenium (Se) be placed? s orbital and f orbital
s orbital only
s orbital and p orbital
d orbital only

An alcohol thermometer makes use of alcohol's changing in order to measure temperature. as the temperature goes up, the alcohol contained in the thermometer increases in volume, filling more of the thermometer's tube.

How many moles of magnesium is 3.01 x10^22 atoms of magnesium?

How does concentration affect reaction rate