8G Metals Flashcards
What are the main physical properties of metals?
Hard, lustrous, solid, conduct electricity and heat, malleable, ductile, sonorous
What does “lustrous” mean?
Shiny
What does “malleable” mean?
Can be bent in to different shapes
What does “ductile” mean?
Can be drawn in to wired
Why is copper commonly used to make water pipes?
Copper does not react with water
What is the scientific name for rust?
Iron Oxide
What is the word equation for rusting?
Iron + Oxygen ——> Iron oxide
What is a catalyst?
Speeds up chemical reactions
Why does an iron nail not rust when it is left in air?
There is no water. Water must be present for rusting to happen.
What gas is produced when a metal reacts with an acid?
hydrogen
How do you test for hydrogen?
Squeaky pop test
When a metal is heated it turns in to a ……………
liquid
What does reactive mean?
When a substance reacts with another substance.
What is a chemical reaction?
A reaction where a new substance is formed
Zinc oxide is a metal oxide. Which 2 elements make up zinc oxide?
Zinc and oxygen
