Double Replacement
What's a Double Replacement Reaction
Double replacement reactions are reactions when parts of two ionic compounds are exchanged, forming two new compounds.
What is a polymer?
Polymers are substances composed of large chains of macromolecules.
What does sodium alginate do to water?
Dilutes it
What two substances react to create a double replacement equation to make polymer worms?
Sodium Alginate and Calcium Chloride
What process occurs for polymers to form?
Either Answer: Dehydration Synthesis OR Polymerization
Where does sodium alginate come from?
Seaweed!
AB + CD -> ?? + ??
AB + CD -> AD + CB
What are the common types of polymers found in nature?
Carbohydrates, nucleic acids, and proteins
What happens to the sodium alginate when it gets blended?
It becomes cloudy
When sodium alginate and calcium chloride react, what are the two products?
Sodium Chloride and Calcium Alginate
What type of bond do monomers and polymers have
Covalent Bonds
What is a real life example of calcium chloride being used in food?
It's used in pickle juice to keep your pickles crispy!
Write the balanced chemical reaction equation for Sodium Alginate (NaC6H7O6) and Calcium Chloride
2NaC6H7O6 + CaCl2 -> 2NaCl + Ca(C6H7O6)2
What molecule has to be lost in order for a dehydration synthesis reaction to occur?
Water
About how much calcium chloride do you need to make the solution?
About a quarter teaspoon