Achemical reaction, where more energy is released than is needed to get the reaction started, is called?

a)
a really amazing reaction

b)
endothermic

c)
exothermic

d)
non-reactive

Which one of the following substances would be the most soluble in ccl4? na2so4 h2o ch3ch2ch2ch2oh c4h10 hi

What is a main difference between a mixture and a pure substance? a mixture is only a liquid, but a pure substance can be in any state.a mixture looks the same throughout, but a pure substance does not.1 a mixture can vary in composition, but a pure substance has a set composlo a mixture can be made up of a single compound, but a pure substance car

The empirical formula of a compound is ch2o and its mass is 120 amu/molecule, what is its formula?