What Word means the gradual change and build up of organisms in an enviroment

What are the partial and total vapor pressures of a solution obtained by mixing 35.8 g benzene, and 56.7 g toluene, at the vapor pressure of the vapor pressure of C6H5CH3

What purpose does fecl3 serve in the electrophilic aromatic substitution reaction between chlorine and benzene?

Which of the following is one way that nuclear reactions differ from chemical reactions?

Calcium oxide reacts with water in a combination reaction to produce calcium hydroxide: CaO (s) + H2O (l) →Ca (OH) 2 (s) In a particular experiment, a 4.50-g sample of CaO is reacted with excess water and 5.45 g of Ca (OH) 2 is recovered.

Какая система называется моделью химия

What does mass is conserved in a chemical reaction mean

Which atom has a nucleus that contains 13 protons and 14 neutrons 1. Mg 2. Be 3. Al 4. N

Determine the oxidation state of the metal ion in [co (nh3) 5br]2+. express your answer as an integer.

Which functional group contains oxygen atom? a. Carbonyl group b. Amino group c. Sulfhydryl group

A mountain is a example of solid?