In which reaction is nitric acid acting as an oxidising agent ? A Cu+4HNO 3 Cu(NO 3 ) 2 +2H 2 O+2NO 2 B CuO+2HNO 3 Cu(NO 3 ) 2 +H 2 O C Na 2 CO 3 +2HNO 3 2NaNO 3 +H 2 O+CO 2 D NaOH+HNO 3 NaNO 3 +H 2 O

Chemical kinetics what was the rate of reaction in trial 3? choose the closest answer.

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.

What is the mass of 0.46 mol of mgcl2