Part C Describe a type of mechanical weathering that you have learned about. How could you model this? It has to do with freezing something.

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.

Areaction in which products can react to re-form reactants is

How many oxygen atoms are there in 3.15 moles of hcl manganese (iv) oxide, mno2