chapter 17-- Elements Compounds And Mixtures

Question 1

Define an element

Answer 1

An element is a substance that cannot be split up into simpler substances by chemical means.
Elements contain only one type of atom

Question 2

Name at least 5 everyday simple substances

Answer 2

Mercury
Helium
Neon
Lead
Sodium
Oxygen 
Gold
Aluminum

Question 3

What are the letters for 
1- hydrogen
2- carbon
3- nitrogen
4- fluorine
5- phosphorus
6- sulfur

Answer 3

1- H
2- C
3- N
4- O
5- F
6- P
7- S

Question 4

7- helium
8- neon
9- magnesium 
10- aluminum
11- silicon 
12- chlorine 
13- calcium
14- manganese
15- zinc

Answer 4

7- He
8- Ne
9- Mg
10- Al
11- Si
12- Cl
13- Ca
14- Mn
15- Zn

Question 5

Define compound

Answer 5

A compound is a substance that is made up of two or more different elements combined together chemically. Compounds contain two or more different types of atoms

Question 6

Define mixture

Answer 6

A mixture consists of two or more different substances mingled with each other physically combined