question What is the balanced chemical equation for the reaction between hydrochloric acid HCl and sodium sulfite Na SO

Chemistry

What is the balanced chemical equation for the reaction between hydrochloric acid (HCl) and sodium sulfite (Na₂SO₃)?

A. 2HCl + Na₂SO₃ → 2NaCl + H₂O + SO₂
B. HCl + Na₂SO₃ → NaCl + H₂O + SO₂
C. HCl + Na₂SO₃ → NaCl + H₂O + 2SO₂
D. 2HCl + Na₂SO₃ → 2NaCl + H₂O + 2SO₂

The balanced equation is 2HCl + Na₂SO₃ → 2NaCl + H₂O + SO₂.

The compound BaSO₄ is commonly known as:

A. Barium sulfate
B. Barium chloride
C. Barium nitrate
D. Barium carbonate

Which functional group is present in an ether?

A. Ether (-O-)
B. Aldehyde (C=O)
C. Carboxylic acid (-COOH)
D. Amine (-NH₂)

The chemical equation 2KClO₃ → 2KCl + 3O₂ represents a:

A. Decomposition
B. Synthesis
C. Combustion
D. Redox

Which technique measures the movement of charged particles in an electric field to separate and identify ions in a sample?

A. Electrophoresis
B. Chromatography
C. Spectroscopy
D. Calorimetry

What is the IUPAC name for CH₃CH₂CH₂CH₂CH₃?

A. Pentane
B. Butane
C. Hexane
D. Propane

Which quantum number distinguishes between different orbitals of the same energy level?

A. Magnetic
B. Principal
C. Azimuthal
D. Spin

What is the IUPAC name for CH₃CH₂COOCH₃?

A. Methyl propanoate
B. Ethyl methanoate
C. Propyl ethanoate
D. Ethyl propanoate

What is the balanced chemical equation for the reaction between sodium sulfide (Na₂S) and hydrochloric acid (HCl)?

A. 2Na₂S + 2HCl → 2NaCl + H₂S
B. Na₂S + HCl → NaCl + H₂S
C. Na₂S + 2HCl → 2NaCl + H₂S
D. Na₂S + HCl → NaCl + 2H₂S

Which compound is an example of a diatomic alkene?

A. Ethene
B. Propene
C. Butene
D. Ethyne

What is the product of the reaction between sulfuric acid (H₂SO₄) and sodium hydroxide (NaOH)?

A. Sodium sulfate and water
B. Sodium hydroxide and sulfuric acid
C. Sodium sulfate and hydrogen gas
D. Water and sodium hydroxide