Acids
Tastes sour, turn blue litmus paper pink, conducts electricity when dissolved in water
What is an acid?
Tastes bitter, turn pink litmus paper blue, conducts electricity when dissolved in water
What is a base?
In neutralisation reactions HCl and Mg(OH)2
What are reactants?
Your stomach is sour after you drank large glasses of lemonade. You take a medication to help the pain. What medication did you take and why?
What is an antacid that is a base?
HCl + NaOH →NaCl + ???
What is water or H2O?
Positively charged ions released into solution from acids, part of water
What is H+?
Negaitively charged ions released into solution from acids, part of water
What is hydroxide (OH-) ions?
H2O + Salt
What are the products of a neutralisation reactions?
You have a red coloured solution that when you add something else it turns orange then green then blue. A chemical that you added is responsible for showing the colour.
What is universal indicator?
HCl + NaHCO3→NaCl + H2O + ???
What is CO2?
When the anion and cation of the acid are free in water.
What is dissociation?
Stronger bases release more OH- ions into solution than weaker bases.
What is dissociation?
CO2 is a product
What are neutralisation reactions with carbonate reactants?
A recipe calls for baking powder, which is tartaric acid and sodium bicarbonate. You dont have the baking powder, but you have the other 2 ingredients. When you add the wrong ratio of the ingredients, your recipe doesn't work out and tastes sour. Why?
What is not adding enough base or sodium bicarbonate?
2 HNO3 + Na2CO3→2 ???? + H2O + CO2
What is NaNO3?
This acid, found in vinegar, is used for food preservation, ex. pickles.
What is acetic acid?
What is O2-, OH-, HCO3- and CO32-?
The atoms on the left side of the equation are the same as the atoms on the right side of the equation.
What is conservation of mass?
Farmers spread this basic substance on soil to neutralise excess acidity and improve crop growth. Hint, in one experiment this substance turned cloudy.
What is lime or limewater (calcium carbonate or calcium oxide)?
XH3PO4+YCa(OH)2→Ca3(PO4)2+ZH2O
What is X=2, Y=3 and Z=6?
Hydrochloric acid, sulfuric acid, and nitric acid all have a very low pH. This means they are:
What is a strong or highly acidic acid?
Sodium hydroxide and magnesium hydroxide are typically found in these household products. *Hint: your guardians usually keep them under the sink or in the laundry room.
What are cleaning supplies?
Universal indicator is added to a solution. It turns green and this means something important. It also has the same amount of multiple kinds of ions which tell us acid or base.
What is a neutral solution with equal amounts of H+ and OH- ions?
Doctors have to treat a life-threatening condition called acidosis. If you were the doctor, what is acidosis and what treatment would you recommend?
What is when your blood pH is too low and adding base into it to lower it back down?
H3SO4 + 5NH4OH → (NH4)SO4 + 2H3O
Is this right? Name all the reactants and products.
What is H2SO4 + 2 NH4OH → (NH4)2SO4 + 2 H2O?
What is sulfuric acid, ammonium hydroxide, ammonium sulfate and water?