*PLEASE HELP FAST* Magnesium sulfate can occur in many different hydrates with the generic formula of MgSO₄ ‧ XH₂O. The hydrate was weighed initially to have a mass of 3.48 g. The hydrate was then heated in a crucible over a flame for five minutes. It was weighed again and had a mass of 2.18 g. How many moles of magnesium participated in the reaction?Immersive Reader
(2 Points)
2.18
0.018
1.30
0.036

the equation that correctly represent the reaction for formation of ammonia is

n2+ 3h2 → 2nh3 (answer d)

1 mole of nitrogen gas (n2) react with 3 moles of hydrogen gas (h2) to form 2 moles of ammonia ( nh3). this is in a process known as haber process were iron is used as a catalyst and reaction take place that a higher temperature and pressure. the process is exothermic hence energy is released.

a corroding iron, if that's one of your choices

35. a insulated cylinder of solid gold (k 310 kw/m-k) of radius v2 m and height 5 m is heated at one end until the temperature at each point in the cylinder is given by w(r, y, z) (30 z2)(2-(r2+ y2). determine the rate of heat flow across each horizontal disk given by z 1, z 2, and z 3, identifying which has the greatest rate of heat flow across it.

explanation: