Counting Atoms (Poindexter)

Front

What is the chemical formula for water?

Back

H₂O

Front

How many atoms of Hydrogen are in one molecule of water (H₂O)?

Back

2

Front

What is the product of the reaction: 2H₂ + O₂?

Back

2H₂O

Front

How many Sodium (Na) atoms are in 1 molecule of Sodium Chloride (NaCl)?

Back

1

Front

What is the total number of atoms in 6NaCl?

Back

12 (6 Na + 6 Cl)

Front

How many Nitrogen (N) atoms are in (NH₄)₂CrO₄?

Back

2

Front

What does the subscript in a chemical formula indicate?

Back

The number of atoms of the element in one molecule.

Front

What is the total number of atoms in the compound C₆H₁₂O₆ (glucose)?

Back

24 (6 C + 12 H + 6 O)

Front

How do you determine the number of atoms in a compound?

Back

Add the subscripts of all elements in the formula.

Front

What is the significance of the coefficients in a chemical equation?

Back

They indicate the number of molecules or moles of a substance.