The average atomic mass of a sample of an element X is 16.2u. What are the percentages of isotopes X (mass number 16, atomic number 8) and X (mass number 16, atomic number 8) in the sample?

In the 1990's, biologists studied the alligator population in Lake Apopka, Florida. This lake experienced a chemical spill of the pesticide dicofol in 1980, and researchers wanted determine the effects of the pollution on organisms in the area.

What is C6H12O6+602---> 6CO2+6H20+energy?

Molecules of 1-bromopropane and 2-bromopropane differ in

What chemical process must always accompany a reduction process?

The _ may have been caused by a vaporizing comet

Collagen is made of fibers and is found in tendons and cartilage. Collagen contributes to meat toughness and is, therefore, an example of which type of protein?

1. Why does CH30 evaporate faster than water?

How does concentration affect our daily lives in science?

How many nitrogen atoms are in 2.79 mo. of NH3

What is the chemical formula for polysaccharide?