this passage describes a chemical reaction. read the passage. then, follow the instructions below.\nif you…

this passage describes a chemical reaction. read the passage. then, follow the instructions below.\nif you visit a cave, you may notice icicle - shaped rocks called stalactites hanging from the caves ceiling. stalactites form when water that contains minerals drips from the caves ceiling. the dripping water leaves behind deposits of limestone, which is made mostly of calcium carbonate (caco₃). calcium carbonate forms, along with carbon dioxide gas (co₂), when calcium bicarbonate (cah₂c₂o₆) in the water breaks down. the limestone deposits build up over thousands of years, eventually forming stalactites.\ncomplete the table to classify the substances in this chemical reaction.\n| substance | reactant | product |\n|--|--|--| \n| calcium bicarbonate (cah₂c₂o₆) | | |\n| calcium carbonate (caco₃) | | |\n| carbon dioxide (co₂) | | |
Answer
Explanation:
Step1: Identify reactant - product concept
Reactants are substances that start a chemical reaction, products are what is formed.
Step2: Analyze the reaction
The text says calcium bicarbonate ($CaH_2C_2O_6$) breaks down. So it is a reactant. Calcium carbonate ($CaCO_3$) and carbon dioxide ($CO_2$) are formed, so they are products.
Answer:
| Substance | Reactant | Product |
|---|---|---|
| calcium bicarbonate ($CaH_2C_2O_6$) | $\checkmark$ | |
| calcium carbonate ($CaCO_3$) | $\checkmark$ | |
| carbon dioxide ($CO_2$) | $\checkmark$ |