question The bond angle in a molecule with a seesaw shape is approximately

Chemistry

The bond angle in a molecule with a seesaw shape is approximately:

A. 120°
B. 109.5°
C. 180°
D. 90°

The bond angle in a seesaw molecule is approximately 180 degrees.

The balanced chemical equation for the reaction between hydrochloric acid (HCl) and sodium carbonate (Na₂CO₃) is:

A. 2HCl + Na₂CO₃ → 2NaCl + H₂O + CO₂
B. HCl + Na₂CO₃ → NaCl + H₂O + CO₂
C. 2HCl + Na₂CO₃ → NaCl + H₂O + CO₂
D. HCl + Na₂CO₃ → 2NaCl + H₂O + CO₂

Which of the following is a strong acid found in the human stomach?

A. Hydrochloric acid (HCl)
B. Acetic acid (CH₃COOH)
C. Sulfuric acid (H₂SO₄)
D. Nitric acid (HNO₃)

The electronegativity of an atom is a measure of its:

A. Ability to attract electrons
B. Ability to lose electrons
C. Nuclear charge
D. Atomic size

What is the chemical formula of nitric acid?

A. HNO₃
B. HCl
C. H₂SO₄
D. H₃PO₄

What is the product of the reaction between zinc (Zn) and hydrochloric acid (HCl)?

A. Zinc chloride and water
B. Zinc oxide and water
C. Zinc hydroxide and hydrogen gas
D. Zinc chloride and hydrogen gas

The color of litmus paper turns ___________ in the presence of an acid.

A. Red
B. Blue
C. Green
D. Yellow

Which of the following is an example of a weak base found in household cleaning products?

A. Ammonium hydroxide (NH₄OH)
B. Sodium hydroxide (NaOH)
C. Potassium hydroxide (KOH)
D. Calcium hydroxide (Ca(OH)₂)

What happens to the pH of a solution when it becomes more acidic?

A. Decreases
B. Increases
C. Remains constant
D. Becomes neutral

In an ionic bond, electrons are transferred from:

A. Metal to nonmetal
B. Nonmetal to metal
C. Metal to metal
D. Nonmetal to nonmetal

A solution with a pH of 3 is considered:

A. Acidic
B. Neutral
C. Basic
D. Alkaline