What is Sediment? A. pieces of mud, gravel, sand, minerals, and dead plants and animals. B. the smooth sandstone sides of canyons.

C. only pieces of gravel and small rocks that break off during weathering.

D. muddy debris in which dead plant and animal matter deposit

हर रात मेरा नाम बोल कर सोया करो, खिड़की खोल तकिया मोड़ कर सोया करो, हम भी आएंगे तुम्हारे ख्यालों में इसलिए थोड़ी सी जगह छोड़ के सोया करो good night

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%