What is a Molecular Equation?

• A balanced chemical equation in which all the reactants and products are given by their chemical formulae.

• a chemical equation that shows all soluble ionic species broken into their respective ions.

• a chemical equation showing only the species which are actively involved in the reaction.

Tags

NGSS.HS-PS1-7

What is a Net Ionic Equation?

• a balanced chemical equation in which all the reactants and products are given by their chemical formulae.

• a chemical equation that shows all soluble species broken into their respective ions.

• a chemical equation showing only the species which are actively involved in the reaction.

Pick the formula equation.

• AgNO3(aq) + NaCl(aq) → AgCl(s) + NaNO3(aq)

• Ag+(aq)+ NO3-(aq)+ Na+(aq)+ Cl-(aq) → AgCl(s)+ Na+(aq)+ NO3-(aq)

• Ag+(aq)+ Cl-(aq) → AgCl(s)

Tags

NGSS.HS-PS1-2

NGSS.HS-PS1-7

Pick the Net Ionic Equation.

• 2 Na₃PO₄ (aq) + 3 CaCl₂ (aq) --> 6 NaCl (aq) + Ca₃(PO₄)₂ (s)

• 6 Na⁺ (aq) + 2 PO₄^3- (aq) + 3 Ca²⁺ (aq) + 6 Cl^- (aq) --> 6 Na⁺ (aq) + 6 Cl^- (aq) + Ca₃(PO₄)₂ (s)

• 2 PO₄^3- (aq) + 3 Ca²⁺ (aq) --> Ca₃(PO₄)₂ (s)

Tags

NGSS.HS-PS1-7

Is the following equation a formula, complete, or net ionic equation?

2H+(aq) + SO4 2- (aq) + CaCO3(s) → H2O(l) + CO2(g) + CaSO4(s

• Formula Equation

• Complete Ionic Equation

• Net Ionic Equation

Is the following equation a formula, complete, or net ionic equation?

2 HClO(aq) + Ca(OH)2(aq) → 2 H2O(l) + Ca(ClO)2(aq)

• Formula Equation

• Complete Ionic Equation

• Net Ionic Equation

Is the following equation a formula, complete, or net ionic equation?

Co2+ (aq) + S 2-(aq) → CoS (s)

• Formula Equation

• Complete Ionic Equation

• Net Ionic Equation

Which is the correct net ionic equation for the reaction of AgNO₃ and CaCl₂?

• Ca²⁺(aq) +  2Cl^- (aq) → CaCl(s)
• Ag⁺(aq)  +  Cl^- (aq) → AgCl(s)
• Ag +  Cl  →  AgCl
• Ag⁺  +  Ca²⁺   →Ag₂Ca (s)

Which of these lists contains only soluble substances? Don't forget that the halides (family 17) will form precipitates with Ag+, Pb2+ and Hg2+.

• sodium nitrate, potassium chloride, calcium carbonate
• lead nitrate, lead chloride, lead sulfate
• calcium nitrate, copper chloride, ammonium phosphate
• silver nitrate, barium sulfate, copper carbonate

What is Solubility? 

• What is dissolved 
• What does the dissolving
• A measure of how much solute can dissolve in solvent 
• a charged ion