Intro - U1 Review

Which is the correct formula for:
 three hydrogen (H)
one sulfur (S)
four oxygen (O)

• H₃SO₄
• HSO₄
• H₄S₃O
• H₂O

Tags

NGSS.MS-PS1-1

How many atoms are there TOTAL in:
H₂SO₄

• 6
• 5
• 7
• 3

Tags

NGSS.MS-PS1-1

Which of the following is a compound?

• Co
• O₂
• C
• CO₂

Tags

NGSS.MS-PS1-1

Element or compound?
H₂O

• element
• compound

Tags

NGSS.MS-PS1-1

How many atoms of carbon (C) are in C₆H₁₂O₆?

• 3
• 6
• 12
• 24

Tags

NGSS.MS-PS1-1

The small number to the right of an elemental symbol (H₂) is called?

•  a subscript 
• a coefficient 
• a variable 
• a divisor 

Tags

NGSS.MS-PS1-1

The substances at the beginning of a chemical equation are called the ____

• product
• yield
• chemical symbol
• reactants

In this image, the symbols to the right of the arrow (in black) are called the_______.

• Products
• Reactants
• Subscripts
• Coefficients

Tags

NGSS.MS-PS1-2

NH₃ ---> N₂ + H₂
What are the products?

• N₂ + H₂
• N₂
• H₂
• NH₃

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-2

All of the following are chemical changes except

• iron rusting
• water evaporating
• wood burning
• food rotting

Tags

NGSS.MS-PS1-2