Chemical Character Flashcards
The simplest chemicals are called what
Elements
All elements are made up of tiny particles called what
Atoms
Two metals found in or extracted from the ground
Gold & Copper
In general most metals are solids except
Mercury
Some non metallic elements are gases while some are solids; name one which is a liquid
Bromine
An element is a substance that consists of only ONE type of atom
An element is a substance that consists of only ONE type of atom
What is a molecule
A particle that consists of two or more atoms chemically bonded together
What is a compound
A substance that consists of two or more elements chemically joined together
What is the test for hydrogen
If you apply a wood splint, it will burn with a squeaky pop
Hydrogen is what in colour
Colourless
Hydrogen is what in smell
Odourless
When hydrogen burns what do you hear
A squeaky pop
When hydrogen burns you hear and see what
You hear a squeaky pop and you see condensation
When hydrogen burns, you hear a squeaky pop and on the sides of a dry container you see condensation. We can summarise the reaction by writing
hydrogen + oxygen from the air = water
Most non metallic elements are dull
Most non metallic elements are dull
Non metallic elements which are solids are easily broken when you attempt to change the shape
Non metallic elements which are solids are easily broken when you attempt to change the shape
Non metallic elements are not sonorous
Non metallic elements are not sonorous
Non metallic elements are poor conductors of heat and electricity
Non metallic elements are poor conductors of heat and electricity
Metallic elements are hard and dense
Metallic elements are hard and dense
Metallic elements are good conductors of heat and electricity, they are shiny when freshly cut can be hammered into sheets and can be drawn into wires
Metallic elements are good conductors of heat and electricity, they are shiny when freshly cut can be hammered into sheets and can be drawn into wires
