Which statement best describes the relationship between prophase and telophase? The spindle fibers bring the chromosomes together in prophase then apart in telophase.
The spindle fibers pull the chromosomes apart in prophase then bring them together in telophase.
The nuclear membrane forms in prophase and breaks down in telophase.
The nuclear membrane forms in telophase and breaks down in prophase.

The spindle fibers pull the chromosomes apart in prophase then bring them together in telophase.

Explanation: hope this helps☺️

1. for the first question, we must find the mass of the anhydrous salt, mgso₄. the molar mass for mgso₄·7h₂o is 246.47 g/mol, while that of mgso₄ is 120.37 g/mol.7.834 g mgso₄·7h₂o * 1 mol mgso₄·7h₂o/246.47 g * 1 mol mgso₄/1 mol mgso₄·7h₂o * 20.37 g mgso₄/mol = 0.647 g mgso₄

2. mass of water = mass of sample - mass of anhydrous salemass of water = 7.834 - 0.647 = 7.19 gpercent water in hydrate = 7.19/7.834 * 100 = 91.74%