A certain compound contains C, H and O. One molecule of the compound is known to contain 2 atoms of O, and the number of atoms of H is two times the number of atoms of C per molecule. when a quantity of the compound is burned completely in O2 to form CO2 and H2O as the only products, .375 mol of O2 is consumed and .3 mol of H2O is formed. Calculate the chemical formula of the compound.

Which element in the third period would you expect to have the larger atomic radius, sodium (na) or sulfur (s)? a. sodium, because it has a higher effective nuclear charge attracting electrons in fewer energy levels. b. sodium, because it has fewer protons attracting electrons in the same energy levels. c. sulfur, because it has more protons attracting electrons in more energy levels. d. sulfur, because it has a higher effective nuclear charge attracting electrons in the same energy levels.

Why is retrograde motion an apparent motion

Which of the following is the correct definition of chemical energy? a. energy an object has because of its motion or position b. energy resulting from the flow of charged particles, such as electrons or ions c. energy produced from the splitting of atoms d. energy stored in chemical bonds of molecules