Chemistry Quiz

Which type of bond is formed between the carbon and oxygen atoms in a CO₂ molecule?

• nonpolar covalent

• polar covalent

• ionic

• electrovalent

Element X is in Group 2 and element Y is in Group 17. What happens when a compound is formed between these two atoms?

• X loses electrons to Y to form an ionic bond.

• X loses electrons to Y to form a covalent bond.

• X gains electrons from Y to form an ionic bond.

• X gains electrons from Y to form a covalent bond.

The forces between atoms that create chemical bonds are the result of interactions between

• nuclei

• electrons

• protons and electrons

• protons and nuclei

Potassium phosphate, K₃PO₄, is a source of dietary potassium found in a popular cereal. Identify two types of chemical bonding in the source of dietary potassium in this cereal.

• Ionic and covalent

• Metallic and covalent

• Ionic and metallic

• Covalent and hydrogen

The diagram shows two waves traveling in the same medium for the same length of time. The two waves have different

• amplitudes

• frequencies

• speeds

• wavelengths

The diagram below shows a tuning fork vibrating in air. The dots represent air molecules as the sound wave moves toward the right. Which diagram best represents the direction of motion of the air molecules?

• Circular motion

• Horizontal motion to the right

• Vertical motion

• Horizontal motion to the left

A C-13 atom has how many neutrons compared to a C-12 atom?

• Five

• Six

• Seven

• Eight

Which type of bonds are mentioned in the document?

• Covalent and metallic

• Ionic and covalent

• Hydrogen and ionic

• Metallic and hydrogen

What is the number of protons in a U-238 atom?

• 92

• 143

• 146

• 238

Which atom has 143 neutrons?

• C-12

• C-13

• U-235

• U-238