Chemistry Spring Final Exam

Which of these statements is true about two blocks of gold that are different shapes but have the same mass?

• They have the same volume, but different densities.
• They have different volumes, but the same density.
• They have different volumes and different densities.
• They have the same volume and the same density.
• None of these are correct

What group is the least reactive group of elements on the periodic table?

• alkali metals.
• halogens.
• noble gases.
• transition metals.
• None of these are correct

What is the molecular formula going to be from an ionic compound formed from these two groups?

• X₂Y₃
• X₂Y₂
• XY₂
• X₂Y
• None of these are correct

The process that occurs on the sun that creates all of the elements in the universe is called fusion.

• True

• False

How many protons does Iodine have?

• 127

• 74

• 53

• None of these are correct

What element can be found in Period 6, Group 2A?

• Beryllium

• Barium

• Oxygen

• Molybdenum

• None of these are correct

What happens in a covalent bond?

• Valence electrons are lost

• Valence electrons are gained

• Valence electrons are shared

• Valence electrons do not matter

• None of these are correct

Which of the following atomic particles are contained in the atom’s nucleus and are most of the mass of the atom?

• Protons and electrons

• Protons and neutrons

• Neutrons and electrons

• Protons, neutrons and electrons

Which of the following is the typical charge on the ion formed by fluorine?

• +1

• -1

• +7

• -7

• +9

What is the correct formula for lead (II) iodide?

• PbI

• PbI₂

• Pb₂I

• Pb₂I₂

• None of these are correct