Chemistry

Question 1

Physical change

Answer 1

A change from one state ex solod to liquid ,liquid to gas

Question 2

chemical change

Answer 2

change of materials into another new materials .

Question 3

Elements

Answer 3

Things that cannot be further broken down .

Question 4

Compounds

Answer 4

Substance made from 2 or more elements .

Question 5

Mixtures

Answer 5

Physical blend of two or more substances .

Question 6

Anion

Answer 6

element with a negative charge

Question 7

Cation

Answer 7

compounds with a positive charge

Question 7

Atom

Answer 7

The smallest part of a substance that cannot be broken down chemically

Question 8

Molecule

Answer 8

Two or more atoms connected by chemical bonds, which form the smallest unit of a substance that retains the composition and properties of that substance.

Question 9

Residue

Answer 9

solid left behind in a filter

Question 10

filtrate

Answer 10

Liquid that goes through the filtrate

Question 11

Solution

Answer 11

A homogeneous mixture

Question 12

Chromatography

Answer 12

Separation colours from one colour

Question 13

Distillation

Answer 13

Evaporation in a closed system .

Question 14

Homogeneous

Answer 14

Mixtures we cannot see with the naked eye example salt and water solution, alcohol, chloroform

Question 15

heterogeneous

Answer 15

Mixtures we can physically see