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.
• When a soda bottle is opened and bubbles, carbon - dioxide gas is separating from the liquid solution (soda), which is a separation process.
• Removing salt from seawater is a separation process, often through evaporation or other separation techniques.
• A bright copper statue turning green from weathering is a chemical reaction (oxidation), not a mixing or separating process.
• Water decomposing to oxygen and hydrogen is a chemical reaction, not a mixing or separating process.

Answer:

• removing seed casings from grains
• a soda bottle bubbling when it is opened
• removing salt from seawater