. A compound contains atoms of sulfur and iron. There are 3.6 X 10^20 atoms of iron in the compound. Divide the number of iron atoms by 1.8 X 10^-4 to find the number of sulfur atoms in the compound.

= 2 x 10 ²⁴ sulfur atoms in the compound.

Explanation:

There are 3.6 X 10^20 atoms of iron in the compound

Divide the number of iron atoms by 1.8 X 10^-4 to find the number of sulfur atoms in the compound.

therefore,

= 3.6 X 10²⁰

  1.8 X 10⁻⁴

= 2 x 10 ²⁴  sulfur atoms in the compound.

the answer to your question is c.

if you read the house of usher you should know that the house was haunted

"standard molar enthalpy:

h2o ( liquid water ) : - 285.8 kj/mole

h2o ( water vapor ) : - 241.8 kj / mole.

δhrxn = - 241. 8 - ( - 285.8 )= -241.8 + 285.8 = 44.0

answer: 44.0 kj"