General Chemistry unit 8

I take the heat away from a solid material and it becomes a liquid, what do we call the temperature at which this happens?

• freezing point

• melting point

• boiling point

• condensation point

Tags

NGSS.MS-PS1-4

Which two subatomic particles are found in the nucleus of an atom

• protons and electrons

• protons & neutrons

• neutrons & electrons

A ______ is the smallest chemical unit of matter. When these units all have the same number of protons, they are the same______

• atom,

  atom

• atom,

  element

• element,

  element

• element, atom

Tags

NGSS.MS-PS1-1

______ bonding is when 2 atoms share a pair of electrons. When an atom gives away or takes an extra electron, it has an overall negative of positive charge and is called an _______

• Ionic,

  Element

• Ionic,

  Ion

• Covalent,

  Element

• Covalent,

  Ion

According to this box from the Periodic Table, how many protons and electrons do the atoms in the element Gold have?

• 196.9665

• 1

• 79

• 9

Tags

NGSS.MS-PS1-1

According to the Periodic Table of Elements how many neutrons do the atoms in the element Sodium have?

• 11

• 99

• 12

• 22

Tags

NGSS.MS-PS1-1

Which of the following represents a chemical change?

• Ice melting into water

• Shattering glass

• Salt dissolving into water

• Rusting iron

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

If an element in nature that does not naturally exist as an individual atom it is called______

• Monemers

• Homonuclear Diotomics

• Homosapien

• Combustible

When atoms share electrons they create a bond called a(n)

• Ionic Bond

• James Bond

• Sodium Chloride Bond

• Covalent Bond

Which 3 are properties of a base?

• 1.Taste Sour,

  2.Conducts Electricity in water

  3. donates hydrogen ions

• 1. taste chalky or bitter

  2. slippery to the touch

  3. receives hydrogen ions

• 1. Taste Sour

  2. Slippery to the touch

  3. Conducts electricity in water