What is 31 degrees Celsius in Fahrenheit

Which has larger ionization energy and why: Ca or Mg

Scientists believe that ancient bacteria represents the first evidence of life on Earth. Which of these best describes the process by which bacteria was created?

Which term best describes a protein that speeds up chemical reactions in living things? a. structural protein b. enzyme c. amino acid d. transport protein?

1. Halogens are good disinfectants. Which of the following is a halogen? A. N B. O C. CI D. Fe

In which scenario does radiation occur? A. warming soup on a stove B. drying towels at the beach C. cooking eggs in boiling water D. warming a sore muscle with a hot pack

Increased irrigation demands: decrease the rate of transpiration increase the rate of surface water evaporation change the amount of precipitation in an area do not affect the water cycle

What chemical elements does this reaction contain? C + O2--> CO2 carbon and oxygen carbon, oxygen, and carbon dioxide calcium, oxygen, and calcium dioxide calcium and oxygen

A 140.5 g sample of niso4•xh2o was heated until no further mass decrease was noted. The remaining sample was assumed to be anhydrous niso4 with a mass of 77.5 g. First determine the moles of anhydrous niso4 and moles of h2o lost.

How do pencil models of atoms differ from real atoms?

In a mixture of 2 gases (co2 and br2), 40.0 percent of the total gas pressure is exerted by the carbon dioxide. If the total pressure is 4.60 atm, what pressure does the bromine gas exert?