acids and bases Flashcards
what is a pH scale used for?
it is used to determine if a substance is acidic neutral or alkaline
what is the substance if it has a pH of less than 7?
acidic
if the pH is equal to 7 it is ….
nuetral
if the pH is greater than 7 it is…
alkaline
how can the pH kf a substance be determined?
universal indicator pH paper or a pH meter
what happens when a substance burns in the air and reacts with oxygen?
it forms an oxide
what happens when sulfur is burned?
it produces sulfur gas
does sulfur dioxide dissolve in water?
yes
wha happens when sulfur dioxide dissolves in water?
it becomes sulfuric acid
what happens when carbon dioxide is bubbled through universal imdicator?
it turns acidic
what happens when carbon burns in air?
it produce carbon dioxide
when will nitrogen and oxygen react with each other?
they will only text with eacbtiehr when they are supplied with a lot of energy
Give two every day examples of when oxygen and nitrogen react?
in lightning storms and in car engines when there is a high energy spark
what gas is produced when nitrogen and oxygen rest?
nitrogen dioxide
dkes nitrogen dioxide dissolves?
yea
what are three common types of laboratory acids?
nitric acid sulfuric acid and hydrochloric acid
what are nitric acid and sulfur ice acids made from?
non metal oxides
when is hydrochloric acid made?
it is made when hydro chloride gas is bubbles through water
what are the main cause of acid rain?
sulfur dioxide nitrogen dioxide and carbon dioxide
how is sulfur dioxide produced?
fossil fuels burning in fsctroes that contain sulfur
how is carbon dioxide produced?
burning fossil fuels
what is carbon dioxide used as?
hearing,energy electricity and transport
what is the main environmental problem with co2 ?
climate change the melting of ice cal’s leading to more floods
what is a alternative of the production of carbon dioxide?
wind power and solar energy
