3A) Elements & 3B) Compounds and Formulae

Question 1

What is the basic unit of all matter?

Answer 1

The Molecule

Question 2

Molecules are the smallest unit of a substance that is _____ and _____.

Answer 2

Stable and Complete

Question 3

What are molecules made of?

Answer 3

Atoms

Question 4

True or False: Elemental Molecules are so named because they are made of many elements.

Answer 4

False. Elemental Molecules and made of atoms of the same type.

Question 5

True or False: An element cannot be broken down into simpler substances by a chemical reaction.

Answer 5

True

Question 6

What properties do all metals have in common (except Hg)?

Answer 6

Shiny, malleable and Conductive

Question 7

True or False: All non-metals are nonconductive.

Answer 7

False, this is true for most non-metal elements, but not all.

Question 8

What is a Mixture?

Answer 8

Different molecules in the same space, but not bound together.

Question 9

What Group of Elements are stable alone?

Answer 9

Group 8 Atoms

Question 10

Organic Compounds always contain _____ and are _____ and _____.

Answer 10

Carbon, Large and Complex

Question 11

What does a chemical formula tell you?

Answer 11

How many atoms, how many elements, which elements

Question 12

True of False: Compound Elements behave the same as the elements they are made of.

Answer 12

False, Compounds have different chemical properties than their elements.

Question 13

C6H12O6 is glucose. What information can you gather from this formula?

Answer 13

It has 6 Carbons atoms, 12 Hydrogen atoms, and 6 Oxygen atoms. It is made of 24 total atoms, and three total elements.

Question 14

If comparing atoms, molecules and elements to bricks, what would each be?

Answer 14

Atoms = Bricks
Elements= What kind of Bricks we Have
Molecules = What we build with our Bricks

Question 15

True or False: Mixtures are easily separated into their parts.

Answer 15

True

Question 16

What differs inorganic compounds from organic compounds?

Answer 16

Inorganic Compounds Lack carbon, are small, and can be represented by chemical formula.

Question 17

True or False: Organic molecules can be represented by a simple chemical formula.

Answer 17

False, they are simply too large.

Question 18

True or False: Compounds cannot be decomposed into simpler elements by chemical reactions.

Answer 18

False

Question 19

Elements in a compound are always in definite proportions by _____.

Answer 19

Weight

Question 20

Compounds contain ____ or more elements _____ (2 words)

Answer 20

2, Chemically Combined