A.
C.
e.
Aliwel ule IUUUWWg questions.
Define valency.
b. What is the valency o...
Chemistry, 04.12.2020 06:30 kieramacphee6216
A.
C.
e.
Aliwel ule IUUUWWg questions.
Define valency.
b. What is the valency of aluminium and nitrate in Al (NO),?
How many electron pairs are shared by an oxygen molecule?
d. The valency of fluorine is 1. What is its valence electron?
What are radical and ions?
f. Define
i, element ii. compound iii. symbol
iv. molecule
V. atom vi. metals vii. electrovalent compound
ix. chemical bond x. metalloids
g.
What are radicals? Mention their types.
h. What is valency? Write the valency of the following radicals and elements.
CO, PO, Na, H, O, OH, NH, CI, Ca, Al, Si, Hg (ic), NO,
148 Modern Graded Science Class 9
viii. covalent compound
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The vapor pressure of ethanol is 1.00 × 102 mmhg at 34.90°c. what is its vapor pressure at 61.61°c? (δhvap for ethanol is 39.3 kj/mol.)
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An atom that gains or loses one or more electrons is called a(n)
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