Comprehension - Chemical Change

What do chemical reactions involve?

• Creating new atoms

• Destroying old substances

• Rearranging atoms in old substances to form new substances

• Combining atoms randomly

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-2

NGSS.MS-PS1-5

What are reactants and products in a chemical reaction?

• Old and new substances

• Solid and liquid substances

• Acidic and basic substances

• Organic and inorganic substances

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Fine solid particles form as a product of a chemical reaction between two reactants. What is the term for these particles?

Tags

NGSS.MS-PS1-2

How do precipitation reactions form a solid product called a precipitate?

Fill in the blank with the correct words.

1. A __ reaction occurs when two solutions combine to form an insoluble solid.

2. During a __ change, new substances with different properties are formed.

3. __ reactions involve substances combining with oxygen and releasing energy in the form of heat and light.

4. The insoluble solid formed in a precipitation reaction is called a __.

• precipitation chemical combustion precipitate
• chemical combustion precipitate precipitation

• precipitation combustion chemical precipitate

• precipitation combustion precipitate chemical

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5