These compounds can cause severe burns which can lead to disfigurement and sometimes death.
What is acids and bases.
100
A compound that tastes bitter and has a slippery texture.
What is a base.
100
These compounds are not reactive with metals.
What is a base.
100
A compound that tastes sour and corrodes metals and tissue.
What is an acid.
100
A scale from 0 to 14 that describes how acidic or basic a substance is.
What is the pH scale.
200
Litmus paper is often found in two colours- what are they?
What is blue and red litmus paper.
200
Acids turn blue litmus paper what colour?
What is red.
200
Bases turn red litmus paper what colour?
What is blue.
200
Red and litmus paper are also known as _________?
What is acid-base indicators.
200
What is range of pH values related to acids?
What is 0-6.
300
What values represent the pH of bases?
What is 8-14.
300
What pH value is considered neutral?
What is 7.
300
Eggs are considered _________ on the pH scale?
What is 8 or basic.
300
Stomach acid is considered ______________ on the pH scale.
What is 1 or acidic.
300
A reaction between an acid and a base that produces water and a salt.
What is a neutralization reaction.
400
Acids have what characteristic element?
What is hydrogen.
400
When cabbage juice is added to vinegar, the colour of the resulting substance is _________?
What is pink.
400
A non-toxic base that is used to neutralize stomach acid.
What is an antacid.
400
What type of reaction is a neutralization reaction? Is it a synthesis, single displacement, double displacement, or decomposition?
What is a double displacement reaction.
400
Bases have what characteristic compound?
What is hydroxide (OH).
500
Acidic rain has what pH value?
What is 5.6.
500
When the pH number changes by one, the strength of the acid or base changes by how many times?
What is ten times.
500
Bases are used to clean ovens and drains for this reason.
They do not corrode metal.
500
When sulfuric acid accidentally spilled into the Blanche River in the Temiskaming region of northeastern Ontario, clean-up efforts included what action to help the disaster?
What is the use of a base called lime to neutralize the acid.
500
Cabbage juice indicators turn what colour when a substance is basic?