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PLEASE ANSWER WHAT YOU CAN---I do not get chemistry at all :

PLEASE ANSWER WHAT YOU CAN---I do not get chemistry at all :(



complete and balance

HNO3(aq)+Ca(OH)2(aq)→


H3PO4(aq)+Ca(OH)2(aq)→


What is the pHof an aqueous solution with [H3O+] =6×10−12 M



Carbonated cola is more acidic than coffee or even orange juice because cola contains phosphoric acid.

What is the molar concentration of H3O+ in a cola that has a pH of 4.240?



Calculate pH

  1. Carrots, [H+]=9.5×10−6 M
  2. Peas, [H+]=2.5×10−7 M


Calculate the molar hydrogen ion concentration of each of the following biological solutions given the pH

  1. Saliva, pH=6.66
  2. Blood, pH=7.61



Given the reactant side of the total ionic equation for the neutralization reaction of ammonium hydroxide (NH4OH) with hydrochloric acid (HCl), write the total ionic equation (also known as the complete ionic equation) by entering both the reactant and the product species, separated by the reaction arrow.

NH4+(aq)+OH−(aq)+H+(aq)+Cl−(aq)→ ?

Be sure to include the charges on the ionic species and the physical state of all the reactant and product species.


Express your answer as a net ionic equation. Identify all of the phases in your answer.


  1. HCl(aq)+KOH(aq)→KCl(aq)+H2O(l)
  2. 2HC2H3O2(aq)+Ca(OH)2(aq)→Ca(C2H3O2)2(aq)+2H2O(l

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