What is the balanced equation for: _ FeS + _O2 _Fe2O3 + _SO,? * 2 FeS + 02 – 2 Fe,0, +2 SO, FeS + 02 - Fe,0, + SO, 3 FeS +202 – 3 Fe,0, +2 SO, 4 FeS + 702 - 2 Fe,0, + 4 SO, ANSWER NEEDED ASAP WILL GIVE BRAINLIEST ANSWER

Several mountains together form a mountain . a few of these combined form a mountain system. several systems combined form a mountain , which can stretch thousands of miles in length.

Unpolarized light falls on two polarizer sheets whose transmission axes are at right angles. a third polarizer is placed between the first two so that its axis makes a 52-degree angle with the axis of the first polarizer. a) what fraction of the incident light intensity is transmitted through the first polaroid? b) what fraction of the incident light intensity is transmitted through the second polaroid? c) what is the angle of polarization of the light that enters the third polaroid? d) what fraction of the incident light intensity is transmitted through the third polaroid. e) what happens if the middle polaroid is removed?

Gasoline comes from petroleum, which is made from ancient living things. petroleum, therefore, contains a type of energy. a. heat b. nuclear c. biological d. chemical potential