Chemical Reactions Part 1

Question 1

John Daltons atomic theory

Answer 1

• All substances are made up of solid, tiny, neutral, indivisible particles called atoms
• Atoms of a given element are identical. And atoms of different elements are different in some fundamental way
• Chemical reactions involve the reorganization of atoms
• Chemical compounds are formed when 2 or more elements combine with each other

Question 2

How does a mass spectrometer work?

Answer 2

• The same is heated and the gas is ionized
• The ions are shot through a slit through a strong magnetic field
• The magnetic field exerts a force causing the ions to deflect their motion
• Ions with the lightest mass are deflected the most, and ions with the heaviest mass are deflected the least

Question 3

Transmutation

Answer 3

The changing of base metals into something more valuable like gold

Question 4

How many times smaller is the nucleus when compared to the atom as a whole?

Answer 4

10,000 x smaller

Question 5

Atomic mass refers to…

Answer 5

The number of protons and neutrons in the nucleus of an atom

Question 6

Whats the most important factor that determines the chemical properties of an element?

Answer 6

The number of valence electrons in the atom

Question 7

A hydrate is…

Answer 7

Made up of a 3D geometric array of an ionic compound and water

Question 8

A crystalline lattice is…

Answer 8

Made up of a ratio of oppositely charged ions, held together by electrostatic attraction