Which fossil fuel is responsible for 40% of the united states power generation? i will give you 78 points.

Iknow #2 is d. i just need to know why

What are the primary responsibilities of a chemical engineer involved in "r& d"? develop large scale manufacturing operations discover new products and processes training of new chemists determine products needed by consumers

Marcel just purchased 1.69 grams of iron fillings in order to make living putty for his 6 year old niece. how many moles of iron are made in his sample?