Chemical reactions Flashcards
Do the products of a reaction have different properties that the reactants or the same?
Different
After a chemical reaction does the mass change or stay the same?
Stays the same
What do metal carbonates form when the are thermally decomposed
A metal oxide and carbon dioxide
Which decomposes the easiest? copper carbonate, zinc carbonate or calcium carbonate
Copper carbonate
Which is the hardest to decompose copper, calcium or zinc (all carbonates)
Calcium
How does a precipitation reaction occur?
A precipitate reaction happens when two soluble substances react together to from a product that is insoluble.
What is an insoluble product from to soluble reactants called?
A precipitate
What is a precipitation reaction used to demonstrate?
That the total mass before and after a reaction is the same
