question The bond angle in a molecule with a bent shape is typically less than

Chemistry

The bond angle in a molecule with a bent shape is typically less than:

A. 109.5°
B. 120°
C. 180°
D. 90°

The bond angle in a bent molecule is typically less than 109.5 degrees.

Which of the following elements is a noble gas used in lighting?

A. Neon
B. Nitrogen
C. Nickel
D. Natrium

Which molecule acts as a carrier of electrons during cellular respiration and photosynthesis?

A. Nicotinamide adenine dinucleotide (NAD)
B. Adenosine triphosphate (ATP)
C. FADH2
D. Coenzyme Q

The term "nuclear binding energy" refers to the energy required to:

A. Break a nucleus into protons and neutrons
B. Disintegrate an atom
C. Remove an electron from a nucleus
D. Hold a nucleus together

What type of reaction involves the combination of a metal with a nonmetal to form an ionic compound?

A. Synthesis
B. Decomposition
C. Single displacement
D. Double displacement

The relationship between the equilibrium constant (Kc) and the reaction quotient (Q) is given by:

A. Q = Kc
B. Q > Kc
C. Q < Kc
D. Q = 1

The compound Al₂O₃ is commonly known as:

A. Aluminum oxide
B. Aluminum hydroxide
C. Aluminum chloride
D. Aluminum nitrate

What is the equation for calculating the change in Gibbs free energy (ΔG) in terms of enthalpy (ΔH) and entropy (ΔS)?

A. ΔG = ΔH - TΔS
B. ΔG = ΔH + TΔS
C. ΔG = ΔH/T
D. ΔG = -ΔH/T

The compound Ca(NO₃)₂ is commonly known as:

A. Calcium nitrate
B. Calcium nitride
C. Calcium nitrite
D. Calcium nitrate

Which of the following is a property of bases?

A. Bitter taste
B. Sour taste
C. Red litmus turns blue
D. Releases H⁺ ions

The compound HNO₃ is commonly known as:

A. Nitric acid
B. Nitrous acid
C. Hydrobromic acid
D. Hydroiodic acid