Exeroises
Which of these is not an element?
d.
Aluminum
Water
Nitrogen
Which of these is the chemical symbol of the element cobalt?
d
The chemical formula for potassium carbonate is
Рco,
b
KCO
CKCO
d
K.CO
precipitate
valency
The combining capacity of an element is called its
atomicity
b chemical formula
Which of these does not prevent rusting?
Spraying with salt water
C Applying grease
b. Painting
d. Coating with tin
Fal in the blanks using the words given in the box
tinning
carbon dioxide
physical
molecule
The smallest particle of a compound that retains all its properties is a
ha
Answers
Answered by
2
Answer:
1. water
2.Co
3. KCO3
4. valency
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