Chemistry Year 7

Question 1

What is an atom?

Answer 1

The smallest component of an element

Question 2

What is a molecule?

Answer 2

When two or more atoms are bonded together

Question 3

What is an element?

Answer 3

Made up of one type of atom

Question 4

What is a mixture?

Answer 4

Went to different substances are not chemically bonded

Question 5

What is a group in the periodic table?

Answer 5

Element

Question 6

What is a period on the periodic table?

Answer 6

A horizontal row

Question 7

What is the symbol on the periodic table?

Answer 7

A letter or letters to represent an element

Question 8

What is a formula?

Answer 8

Away to represent the number of atoms in a chemical using symbols

Question 9

 what is an equation?

Answer 9

Version of a chemical reaction chemical formula of the reactants and products

Question 10

What is reactivity?

Answer 10

How easily a chemical reacts with other chemicals

Question 11

What is aqueous?

Answer 11

Something dissolved in water

Question 12

What is a displacement reaction?

Answer 12

A more reactive element/ metal takes the place of a less reactive metal/ element.

Question 13

What is sublimation?

Answer 13

Solid to a gas or a gas to a solid

Question 14

Atom

Answer 14

Smallest possible particle

Question 15

Molecule

Answer 15

Two or more atoms bonded together

Question 16

Element

Answer 16

Chemical containing only one type of atom- can be atoms or molecules

Question 17

Compound

Answer 17

Chemical containing two or more elements bonded together- can dioxide, only be molecules

Question 18

Mixture

Answer 18

Chemical containing two or more air elements or compounds - un bonded