Understanding Chemical Formulas #1

Elements in formula are identified by their symbols.

• True
• False

Lower case letters are part of a 2 letter symbol.

• True
• False

Scientists will never use the number 1 to represent a subscript or coefficient.

• True
• False

Subscripts are written before the element that they describe

• True
• False

To determine how many atoms of an element are present you add all of the atoms together.

• True
• False

Tags

NGSS.MS-PS1-1

How many atoms of sulfur are in each molecule of H₂SO₄?

• 1
• 2
• 3
• 4

Alanine is an amino acid with formula C₃H₇NO_2.  How many atoms in all are in  each molecule of alanine?

• 4
• 10
• 13
• 12

How many atoms of carbon are in a molecule of vinyl chloride (C₂H₃Cl)?

• 2
• 3
• 1

Ethylamine is a compound with the formula C₂H₅NH₂.  How many total atoms are  in each molecule of ethylamine?   

• 7
• 8
• 9
• 10

How many atoms of hydrogen are in a molecule of glucose (C₆H₁₂O₆)?

• 6
• 12
• 18
• 24