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How many different elements are present in H₂COCH₂

• 5

• 4

• 3

• 2

Tags

NGSS.MS-PS1-1

H₂SO₄

• H = 2, S = 4, O = 4

• H = 2, S = 1, O = 4

• H = 8, S = 4, O = 4

• H = 2, SO = 4

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

How many atoms are there TOTAL in:
H₂SO₄

• 6
• 5
• 7
• 3

Tags

NGSS.MS-PS1-1

Is this an Element or a Compound?

C₂H₈O

• Element

• Letters

• Numbers

• Compound

Tags

NGSS.MS-PS1-1

A subscript is the small number below a(n) ________ that tells the number of _______ of that element.

• element symbol; atoms
• atom; element symbol
• subscript; protons
• compound; elements

Tags

NGSS.MS-PS1-1

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 of each element are in this chemical formula?

CH₄COOH₂

• 2 Carbon atoms, 8 Hydrogen Atoms, 4 Oxygen atoms

• 4 Carbon atoms, 6 Hydrogen atoms, 4 Oxygen atoms

• 2 Carbon atoms, 6 Hydrogen atoms, 2 Oxygen atoms

• 1 Carbon atom, 2 Hydrogen atoms, 2 Oxygen atoms

Tags

NGSS.MS-PS1-1

How many Hydrogen atoms are in H₂O? ​ (a)   How many oxygen atoms? ​ (b)   How many molecules? ​ (c)  

• 2
• 4
• 0
• 5

• 6

• 7

• 9

• 8
• 3
• 1

Tags

NGSS.MS-PS1-1

O is the chemical symbol for what element?

• Osmium

• Odell

• Oxygen