a student wants to seperate a mixture of ink qnd water the boiling point of in is 55 degrees describe the method that the student should use to seperate this mixture

Explanation:

Separate ink from water using a process called distillation.

This is a process of separating two substances mixed together.

Water vaporizes at a lower temperature than the ink pigment so if you heat them, the water evaporates, leaving the ink pigment in the flask.

45) Ca < Co < Se

46) Te < S < O

Explanation:

These questions are talking about periodic trends. Here are some things to know about periodic trends:

Electronegativity

how well an element attracts an electronincreases left to right and bottom to top on the periodic tablenoble gases are not includedfluorine is most electronegative element, Francium is least

Atomic Radius

the distance between nucleiincreases from right to left and top to bottom on the periodic table the more electronegative an element is, the smaller it's atomic radiusFrancium has the largest atomic radius while fluorine has the smallest

Ionization Energy

the energy required to remove an electrondirectly proportional to electronegativity

Metallic Character

how closely an element's properties match those of a metaldirectly proportional with atomic radius

Hope this helps :)