Question

Please answer the following questions as instructed

Answer 1

The physical or chemical changes that occur are as follows:

• NaCl (Table Salt) dissolves in water- physical change
• Ag (Silver) tarnishes - chemical change
• Milk sours - chemical change
• An apple is cut - physical change
• Heat changes H2O to steam -  physical change
• Baking soda reacts to vinegar - chemical change
• Fe (Iron) rusts - chemical change
• Alcohol evaporates -  physical change
• Ice melts -  physical change
• Sugar dissolves in water -  physical change
• Wood rots - chemical change
• Pancakes cook - chemical change
• Grass grows - chemical change
• A tire is inflated -  physical change
• Food is digested - chemical change
• Paper towel absorbs water -  physical change

What are physical and chemical changes?

Physical changes are changes that are easily reversible and in which no new substances are formed.

Physical changes involve:

1. a change in size, shape, or state
2. no new substance is formed

Chemical change are changes that are not easily reversible and in which new substances are formed.

Chemical changes involve:

1. a change in the physical and chemical properties
2. a new substance is formed

Considering the given changes to identify the physical or chemical changes:

• NaCl (Table Salt) dissolves in water- physical change
• Ag (Silver) tarnishes - chemical change
• Milk sours - chemical change
• An apple is cut - physical change
• Heat changes H2O to steam -  physical change
• Baking soda reacts to vinegar - chemical change
• Fe (Iron) rusts - chemical change
• Alcohol evaporates -  physical change
• Ice melts -  physical change
• Sugar dissolves in water -  physical change
• Wood rots - chemical change
• Pancakes cook - chemical change
• Grass grows - chemical change
• A tire is inflated -  physical change
• Food is digested - chemical change
• Paper towel absorbs water -  physical change

Learn more about physical and chemical changes at: https://brainly.com/question/17384175

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