9.3 Neutralization Flashcards
What can neutralization do to a solution?
It can change the acidity or alkalinity of a solution.
What’s is neutralization?
Acids and alkalis react with each other when they are mixed together.
What’s the word equation of neutralization?
Acid + Alkali -> Salt+ Water
Give the one example of neutralization.
Hydrochloric acid + Sodium Hydroxide -> Sodium chloride + Water
What’s sodium chloride commonly known for?
As table salt.
What conserved in neutralization?
Mass is conserved in neutralization.
🆙How is tooth decay caused?
Bacteria convert sugar left in the food residue into acids. The acids attack the teeth and cause tooth decay.
🆙How does toothpaste prevent tooth decay?
Toothpaste is slightly alkaline and brushing teeth with toothpaste can neutralize the acids in the mouth.
🆙(Space for sugar free gum)
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🆙How does antacids relive stomach upset?
They contain alkalis which can neutralize excess acid in stomachs.
🆙When mosquito and wasp bite human, how to treat it?
Apply soap to mosquito sting.
Apply vinegar to wasp sting.
🆙What the treatment to industrial waste containing acids or alkalis?
To reduce pollution, alkalis are used to neutralize acidic wastes while acids are used to neutralize alkaline wastes.
🆙What is added when the farm soil is too acidic or alkaline?
Too acidic: Add slaked lime
Too alkaline: Add sulphur
