You need 70.2 J to raise the temperature of 34.0g of ammonia, NH3 (g), from 23.0C to 24.0C. Calculate the specific heat of ammonia.

A flask containing solid ammonium chloride becomes colder as water is added and the salt dissolves. is the magnitude of the lattice energy of nh4cl larger or smaller than the combined hydration energy of the ions?

A powder contains FeSO4 · 7 H2O (molar mass = 278.01 g/mol), among other components. A 3.055 g sample of the powder was dissolved in HNO, and heated to convert all iron to Fe3+.

Which physical properties do all stars have? Check all that apply. They are made of gases? They shine very bright? They have a spherical shape? They contain iron in their cores? They make energy through fusion? @nattyames snap

What element is being oxidized Fe2O3 + 3CO - > 2FE + 3C02

Mary has a mass of 40 kg and Sprint's at 1 m/s. how much kinetic energy does she have?

Which of the following is true of the water molecule? A. It has a linear shape and is polar B. It has a bent shape and is polar C. It has a linear shape and is not polar D. It has a bent shape and is not polar

Calculate the number of repetitions of the β-oxidation pathway required to fully convert a 18-carbon activated fatty acid to acetyl-scoa molecules.

Which of the following is the least reliable source of background information for a scientific project? A) general Internet site B) government Internet site C) library reserve section D) scientific journal

How is an average mass different from a weighted mass

Jared sprayed a pesticide on his garden three times. The first time, many insects died. The second time fewer insects died. The last time very few insects died. What impact did the insecticide have on the species of insects? A.