Which is a compound?

A. Kr

B. O2

C. Cl2

D. CuF2

Our bodies are not very efficient. what happen to most our energy

Which element can bond with titanium (Ti) to form a polar covalent bond? A. beryllium (Be) B. fluorine (F). C. manganese (Mn) D. nitrogen (N) E. oxygen (0)

A group of maple tree is an example of a

What is the percent by mass of water in Na2SO4 x 10H2O

Give the full electron configuration for sulfur. electron configuration:

All of the following are examples of electrolytic solutions, except __. A) Ocean water B) Pure water C) Strong hydrochloric acid D) potassium chloride solution

How many stereoisomers are possible for 1 2-dichlorocyclopentane?

Consider the balanced equation K, Croa (aq) + Pb (NO3) 2 (aq) → PbCrO4 (s) + 2KNO3 (aq) If 25.0 ml of a 1.00M K, Cro, solution is mixed with 10.0 ml of a 0.500M Pb (NO3) 2 solution. a. How many moles of potassium chromate are present? b.

Name 3 organisms that would be classified as eukaryotic, multicellular, and heterotrophic.

A bond formed by electrical attraction between two oppositely charged ions is called