Aplane travel for about 2.5 hours at a velocity of 1200 km/hr east. what distance did it travel?

What happened in 2012 and how does it illustrate the importance of understanding the sun and how it works?

Which atom or ion is the largest? a. k b. k+ c. ca d. ca2+ e. li

Which of the following describes a compound? (hint: carbon and oxygen bo a. a piece of pure carbon, containing only carbon atoms b. oxygen gas surrounding a solid piece of carbon c. a substance made of two oxygen atoms for each carbon atom carbon and oxygen atoms mixed without being bonded together