What is the oxidation number for the chlorine atom in the compound, potassium chlorate, KClO3?

Based on the activity series, which of the following solutions would result in a spontaneous single displacement reaction with lead metal?

Consider the reaction below: CH4 (g) + 2 O2 (g) → CO2 (g) + 2 H2O (g) The element                   is undergoing oxidation and                     is the oxidizing agent.

Copper (II) hydroxide is formed in the following reaction: CuSO4 (aq) + 2 NaOH(aq) →  Cu(OH)₂ (s) +  Na2SO4 (aq)  How much copper(II) hydroxide precipitate (in g) is formed when 35.0 mL of 0.612 M NaOH reacts with an excess of CuSO4?   Hint: Molar mass for Cu(OH)2 is 97.57 g/mol

Calculate ΔH (in kJ) for the reaction:

A system performs 94 kJ of work on its surroundings and gains 43 kJ of heat. What is the value of ΔE (in kJ) for the system?

Copper (II) hydroxide is formed in the following reaction: CuSO4 (aq) + 2 NaOH(aq) →  Cu(OH)₂ (s) +  Na2SO4 (aq)  How much copper(II) hydroxide precipitate (in g) is formed when 45.0 mL of 0.612 M NaOH reacts with an excess of CuSO4?   Hint: Molar mass for Cu(OH)2 is 97.57 g/mol

In this first week of Promed, which of the following vaccine preventable diseases was NOT discussed?

  Identify number 8

    Identify number 4