Science Test Chemical Reaction
What happens when you combine sodium carbonate with a magnesium sulfate solution
A chemical reaction occurs with bubnling
What is a percipitate
A percipitate is a solid formed from a chemical reaction which is insoluable
Why on the molecular level does changing the amount of baking soda or vinegar affect the amount of carbon dioxide gas produced
By adding more baking soda or vinegar there are more molecules who's bonds are broken. There are more atoms that are released creating more molecules
Vinegar and baking sodas chemical formula nd chemical name
C2H4O2 (acetic acid) + NaHCO2 (sodium bicarbonate) = NaC2H3O2 (sodium acetate) + H2O (water) + CO2 (carbon dioxide)
Metane chemical formulas and chemical names
CH4 (methane) + 2O2 (oxygen) = CO2 (carbon dioxide) + 2H2O (water)
Forming a Percipitate chemical formulas and chemical names
CaCl2 (calcium chloride) + 2NaHCO3 (sodium bicarbonate) = CaCO3 (calcium carbonate) + 2NaCl (sodium chloride) + H2O (water) + CO2 (carbon dioxide)
What was the percipitate
Calcium Carbonate
What gas was prduced in the chemical reaction
Carbon Dioxide
What do you observe when you combined the baking soda solution with the calcium chloride?
Color change Solid at the bottom Bubbling
What is a limiting reactant
It is a reactant which does not have enough molecules to make more of the products
What does it mean to say something is soluble in a liquid
It is able to dissolve in a liquid
Could you keep adding more and more baking soda to the same amount of vinegar to get more carbon dioxide?
No because at some point all the vinegar molecules will have been used up in a chemical reaction and therefore the added baking soda will not have any vinegar to react with.
What would you do if you wanted to make more carbon dioxide? (baking soda and vinegar)
You would have to add more molecules to the equation. The more molecules the more atoms which could be made into a molecule like carbon dioxide
What happens when uou combine vinegar in a Chemical Reaction
a gas is formed
Is this a chemical reaction? why or why not
a new molecule was formed
Why does a covalent bond form
electron clouds between atoms overlap
Why does ionic bonds form
electron clouds touch but do not share electrons, electrical connection (NOT MAGNETIC)
What are the 3 signs of a chemical reaction
gas was formed percipitate was formed color change
What does it mean to say insoluble in a liquid
it can not dissolve
Why do you think a chemical reactiom occured
new molecules were created
Why was it important to rinse out the graduated cylinder in between the trials of the activity we did with the vinegar and baking soda
no extra reactants
Why is it that two groups followed the same "recipe" and got two different results
not accurate measurments of reactants didn't rinse weren't combined the same way reactants left at the top
Is evaporation a physical or a chemical change
physical change
What chemical reaction occure in your eyes after you chop onions
reactants= sulfenic acid products= sulferic acid
What soluble substance was formed
sodium chloride
What happened when we took the products from te Forming a Percipitate and put it on a coffee filter?
solid seperated from the liquid solid=calcium carbonate
