IGCSE O Level Chemistry Practice Test 112

Valency and Chemical Formula Multiple Choice Questions (MCQ) PDF - 112

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The MCQ Quiz: Chemical formula of Sodium Sulfite is; "Valency & Chemical Formula" App APK Download (Free) with answers na(so₄)₂, na₂so₃, na₂co₃.10h₂o and nah₂po₄.h₂o to study online schools courses. Study chemical formulae and equations questions and answers, Apple Book to download free sample for accredited online college courses.

Valency & Chemical Formula Questions and Answers PDF Download: Quiz 112

MCQ 556: The chemical formula of Sodium Sulfite is

Na₂SO₃
Na(SO₄)₂
Na₂CO₃.10H₂O
NaH₂PO₄.H₂O

MCQ 557: Examples of sublime substances do not include

solid carbon dioxide
ammonium salts
zinc
iodine

MCQ 558: Soluble Carbonates (CO₃^-2) are

Na₂CO₃
K₂CO₃
(NH₄)₂CO₃
all of above

MCQ 559: Mixtures can be converted to compounds through

physical change
chemical change
high pressures
catalytic reactions

MCQ 560: An easy way to separate soluble and insoluble solids is

filtration
decanting
sublimation
distillation

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