10/23 P8/ Counting atoms/physical changes

How many Hydrogen atoms are in 4H₂O?

• 6

• 8

• 2

• 4

Tags

NGSS.MS-PS1-1

How many Oxygen atoms are in H₂O?

• 1

• 2

• 0

• 4

Tags

NGSS.MS-PS1-1

How many elements are in C₆H₁₂O₆?

• 1
• 2
• 3
• 4

Tags

NGSS.MS-PS1-1

2H₂ + O₂ ----> 2H₂O What is the product?

• ------>
• 2H₂O
• 2H₂+ O₂

Tags

NGSS.MS-PS1-2

2H₂ + O₂ --------> 2H₂O What  are the reactants?

• ----->
• 2H₂O
• 2H₂ +O₂

Tags

NGSS.MS-PS1-5

How many elements are in this compound?... NaHCO₃

• 3

• 4

• 5

• 6

Tags

NGSS.MS-PS1-1

How many elements are in this substance: CaCO₃

• 2

• 3

• 4

• 5

Tags

NGSS.MS-PS1-1

A subscript is the small number below the element symbol that tells the number of _______ of that element.

• atoms

• valence electrons

• protons

• elements

Tags

NGSS.MS-PS1-1

Number of C's in CO

• 1
• 2
• 3
• 4

How many atoms of Hydrogen are in this compound

• 1
• 2
• 3
• 4

Tags

NGSS.MS-PS1-1