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AFKAARUNA S1 SEM2
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what is the use of pH meter
measuring pH
what is compound?
substance consist of 2 or more elements joined together chemically
what is inside alnico?
alumunium, nickel, cobalt, iron
please mention three properties of non-metals
dull, low boiling point, bad electrical conductor, non-sonorous
name three natural indicator of acid and alkaline
red cabbage, hydrangea, turmeric
what is alloy?
some mixture of metals
oxygen react with hydrogen and sodium to produce ...
NaOH
sodium and chlorine react to form...
NaCl or salt or sodium chloride
what is neutralisation?
a process when acid react with alkalis
mention 3 examples of acid in daily life
lemon, vinegar, grape,
acid react with alkaline to form...
salt and water
pH of acid is....
under 7
pH of neutral solution is
7
the characteristic of soap is....
alkaline
the characteristic of vinegar is....
acid
sugar and water mixed then dissolved, which one is solvent?
water
copper and zinc, mixed to form
brass
Which one is mixture?
the right bottom one
Solid substance mixed with liquid substance then dissolved will make...
Solution
What is the mixture of metals?
Alloy
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