What is the density of an object with a mass of 40.0 g and a volume of 80.0 cm3

How much energy is made when a pice of wood burns. how do you know

Identify one disadvantage to each of the following models of electron configuration: -dot structures -arrow and line diagrams -written electron configurations type in your answer below. (answer) -dot structures do not show the distribution of electrons in orbitals and take up a lot of space. -arrow and line diagrams take up a lot of space and make it difficult to count electrons. -written configurations make it easy to lose count of electrons and do not show the distribution of electrons in orbitals.

Which of the following units is not an official si unit? mole liter kilogram ampere