Explain how a light can be seen when sent through a colloid mixture, but not a solution. i have 5 minutes pls help

Needthe meter is the standard unit for: 1) height 2) length 3) weight 4) mass

Neils bohr believed that electrons orbited the nucleus in different energy levels, based on strong support from

The table compares the number of electrons in two unknown neutral atoms. comparison of electrons atom number of electrons a 10 d 11 use this information to determine the number of valence electrons in the atoms. which of the following correctly compares the stability of the two atoms? both are unreactive. both are highly reactive. a is unreactive and d is reactive. a is reactive and d is unreactive.