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Chemistry

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Tanya Gaylord

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Cards in this guide (15)
Can homogeneous mixtures be separated by physical means

Homogeneous mixtures can not be separated, heterogeneous mixtures can.

Do neutrons have an electric charge

Neutrons have a neutral charge
Neutrons have no charge.

The of a sound wave deals with the volume of the sound

amplitude

Fluorine chlorine and bromine all have seven valence electrons Which element has the largest atomic radius

bromine

Music that describes nature or tells a story is known as

tonal music

Reason: APE EGS

What are three characteristics of noble gases

Noble gases are all monatomic (single-atom molecules) and have the following characteristics under normal conditions :

  1. Odorless
  2. Colorless
  3. Low reactivity (due to a full outer electron shell)
The discovery of a periodic table closest to its modern form was the result of which scientist's work with decks of cards

Mendeleev

How many more valence electrons does magnesium need to have a full outer valence shell

it needs six more electrons to have a full outer valence shell.

Which key signature is pictured here

G Major

What is linguistic fragmentation

the use of money to buy your way into power

How many quarters in two and an half

there are ten quarters in two and a half.

two quarters make a half and eight quarters make two. 8quartesr+2quarters=10quarters

Which of the following are pure elements MgCl2 NaCl C3H8 Ag Al

Ag and Al

Why do elements in the top right corner have high ionization energies

The elements in this part of the periodic table want to gain electrons to get to a noble gas configuration - not lose them. To lose electrons is very energetically unfavorable (high ionization energies).

What group of elements has seven valence electrons

The Halogens have seven valence electrons.

Is the periodic table often referred to as the chemists

No. A periodic table is a schematic representation of the elements. Chemists are people.

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