Question

select all the correct answers. which of these are examples of mixing and separating? removing seed casings from grains a soda bottle bubbling when it is opened a bright copper statue turning green from weathering removing salt from seawater water decomposing to oxygen and hydrogen

Explanation:

• Removing seed casings from grains is a physical separation process.
• A soda bottle bubbling when opened is due to the release of dissolved carbon - dioxide (a separation of gas from liquid solution).
• Removing salt from seawater is a separation process (e.g., through evaporation).
• A bright copper statue turning green from weathering is a chemical reaction (not a mixing/separating process).
• Water decomposing to oxygen and hydrogen is a chemical reaction (not a mixing/separating process).

Answer:

• Removing seed casings from grains
• A soda bottle bubbling when it is opened
• Removing salt from seawater