Chemical Reactions and Radioactive Decay

Which reaction is an example of a double replacement reaction?

Which of the following best describes an ionic bond?

• Sharing of electrons between two nonmetals

• Transfer of electrons from a metal to a nonmetal

• Attraction between two metals

• Sharing of protons between atoms

Which compound is ionic?

• +1

• +2

• -1

• -2

A covalent bond is formed when atoms...

• Transfer electrons

• Share electrons

• Share protons

• Attract due to opposite charges

• Copper(I) chloride

• Copper(II) chloride

• Copper dichloride

• Copper chlorine

A substance has a half-life of 10 years. How much of a 20-gram sample remains after 30 years?

• 10 g

• 5 g

• 2.5 g

• 1.25 g

Uranium-238  decays into  Thorium-234  by emitting .........

• an alpha particle
• a beta particle
• gamma rays
• visible light

Tags

NGSS.HS-PS1-8

²⁴⁰₉₄Pu —› ____ + ⁴₂He

• ²³⁶₉₂U

• ²⁴⁷₉₆Cm

• ²⁴⁴₉₃Np

• ²⁴²₉₅Am

Tags

NGSS.HS-PS1-8

Solve this equation for beta decay.
₆¹⁴C = ___ + _-1⁰e

• ₄¹⁰Be
• ₇¹⁴N
• ₂¹⁰He
• ₆¹³C

Tags

Solve Alpha/Beta