Reactions Of Non-metals With Oxygen Flashcards
What colour does litmus paper change in an acidic solution?
Red
What colour does litmus paper turn in an alkaline solution?
Blue
What pH are oxides that are made with non-metals?
Acidic
What are the symbols for the phase of reactants and products in chemical equations?
(s) -solid
(l) - liquid
(g) - gas
(aq) - aqueous solution
What is an aqueous solution?
When the chemical is dissolved in water
What is an allotrope?
When an element can be found as a solid in different forms.
What is an example of an allotrope?
Carbon: Coal and Diamond
What is the usual pH of a non-metal oxide?
1-6.9
Acid
What happens when a metal oxide reacts with hydrochloric acid?
Metal oxide+acid➡️Salt+water
How does Carbon burn in Oxygen?
With an orange- yellow flame
What gas is formed when carbon reacts with oxygen?
Carbon dioxide
What is the pH of carbon dioxide?
Acid
How does sulfur react with oxygen?
With a purple bluish flame
Forms a choking, poisonous gas
What is the pH of sulfur dioxide?
Acid
What is the reaction of white phosphorous and oxygen like?
Yellow-orange flame
White fumes are formed
How must white phosphorous be stored?
In water
Why must white phosphorous be stored under special conditions?
It will combust in the air
What gas is released from the reaction between phosphorous and oxygen?
Phosphorous pentoxide
Why are non-metal oxides classified as acids?
When made into an aqueous solution (mixed with water) their pH is below 7
