Chemical & Physical Changes & Chemical formulas

Identify the following process: When we strike a match.

• Physical change
• Chemical change

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Identify the following process: When we crack an egg.

• Physical change
• Chemical change

Identify the following process: When we fry an egg.

• Physical change
• Chemical change

Identify the following process: the formation of a tornado.

• Physical change
• Chemical change

What is this ?

• a chemical reaction
• a mathematical equation
• a chemical equation

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-2

NGSS.MS-PS1-5

What is this ?

• a chemical reaction
• a mathematical equation
• a chemical equation

How many atoms are there TOTAL in:
H₂SO₄

• 6
• 5
• 7
• 3

How many Sodium (Na) are in 6NaCl?

• 1
• 12
• 6

Tags

NGSS.MS-PS1-1

How many O's are in Al₂(SO₄)₃

• 4
• 12
• 7
• 24

Tags

NGSS.MS-PS1-1

How many Elements are in the compound C₂H₈O ?

• 2
• 1
• 3
• 0

Tags

NGSS.MS-PS1-1