Science TEKS 8.6B & 8.6E

Count the atoms of each element in this molecule: 2H₂O.

• 2 hydrogen atoms and 1 oxygen atom

• 4 hydrogen atoms and 2 oxygen atoms

• 2 hydrogen atoms and 2 oxygen atoms

• 4 hydrogen atoms and 1 oxygen atom

Tags

NGSS.MS-PS1-1

Count the atoms of each element in this molecule: 2H₂O₂.

• H: 2, O: 2

• H: 4, O: 4

• H: 2, O: 4

• H: 4, O: 2

Tags

NGSS.MS-PS1-1

Count the atoms of each element in this molecule: 3CH₄O.

• C: 3, H: 12, O: 3

• C: 3, H: 12, O: 1

• C: 1, H: 4, O: 1

• C: 3, H: 4, O: 3

Tags

NGSS.MS-PS1-1

Count the atoms of each element in this molecule: 2NaCl.

• 2 Na, 2 Cl

• 1 Na, 1 Cl

• 2 Na, 1 Cl

• 1 Na, 2 Cl

Tags

NGSS.MS-PS1-1

Count the atoms of each element in this molecule: 3MgSO₄.

• 3 Mg, 3 S, 12 O

• 3 Mg, 1 S, 4 O

• 1 Mg, 1 S, 4 O

• 3 Mg, 3 S, 4 O

Tags

NGSS.MS-PS1-1

Count the atoms of each element in this molecule: Mg(SO₃)₂.

• Mg: 1, S: 2, O: 6

• Mg: 1, S: 1, O: 3

• Mg: 2, S: 2, O: 6

• Mg: 1, S: 3, O: 6

Tags

NGSS.MS-PS1-1

Identify the reactants in the chemical equation: CH₄ + O₂ → CO₂ + H₂O.

• CH₄ and O₂

• CO₂ and H₂O

• CH₄ and CO₂

• O₂ and H₂O

Tags

NGSS.MS-PS1-2

Identify the products in the chemical equation: Al + O₂ → Al₂O₃.

• Al

• O₂

• Al₂O₃

• Al + O₂

Tags

NGSS.MS-PS1-5

Balanced or Unbalanced? Fe + O₂ → Fe₂O₃

• Balanced

• Unbalanced

Tags

NGSS.MS-PS1-5

Balanced or Unbalanced? 2 Fe + 3 Cl₂ → 2 FeCl₃

• Balanced

• Unbalanced

Tags

NGSS.MS-PS1-5