The no. of radial nodes of 3s and 2p orbital are respectively

Are cells reproduced sexually

The chemical equation for SO + H2O

Why must energy be controlled?

8. Which of the following statements is true? A) All spontaneous processes are exothermic. B) All nonspontaneous processes are endothermic. C) All spontaneous processes release free energy D) Entropy always increases in a spontaneous process.

Which of the following solutions would be best to buffer a solution near pH 5? (a) 1.0 x 10-5 M HCl (b) 1.0 x 10-5 M NaOH (c) A solution containing approximately equal concentrations of hypochlorous acid (HOCl, Ka = 2.

Which of the following best describes the motion of the particles in a piece of steel?

Student follow up The ionic equation for the reaction between zinc and sulfuric acid is. Zn (s) + 2H (aq) - - Zn" (aq) + H2 (g) a State what has been oxidised in this reaction. Explain your answer in terms of electrons.

What kind of group 1 atoms are the most reactive? a. Small atoms c. Atoms with the most electrons in the valence level b. Large atoms d. Atoms at the top of the periodic table

What does it mean when there are 2.3 x 10-4 moles?

Electric force is an A. attraction and repulsion between protons and electrons . B. attraction and repulsion between protons and neutrons. C. attraction and repulsion between neutrons and electrons.