(a)
Interpretation: Name of the elements present in ammonia,
Concept Introduction: The simplest form of matter consisting unique set of properties is said to be elements. They are pure substances made up of only one type of atom.
The chemical combination of two or more elements in a fixed proportion results in the formation of a compound.
(a)
Answer to Problem 55A
Nitrogen and hydrogen.
Explanation of Solution
The chemical formula of the ammonia compound is
(b)
Interpretation: Name of the elements present in potassium oxide,
Concept Introduction: The simplest form of matter consisting unique set of properties is said to be elements. They are pure substances made up of only one type of atom.
The chemical combination of two or more elements in a fixed proportion results in the formation of a compound.
(b)
Answer to Problem 55A
Potassium and oxygen.
Explanation of Solution
The chemical formula of the potassium oxide compound is
(c)
Interpretation: Name of the elements present in sucrose,
Concept Introduction: The simplest form of matter consisting unique set of properties is said to be elements. They are pure substances made up of only one type of atom.
The chemical combination of two or more elements in a fixed proportion results in the formation of a compound.
(c)
Answer to Problem 55A
Carbon, hydrogen and oxygen.
Explanation of Solution
The chemical formula of the sucrose compound is
(d)
Interpretation: Name of the elements present in calcium sulfide,
Concept Introduction: The simplest form of matter consisting unique set of properties is said to be elements. They are pure substances made up of only one type of atom.
The chemical combination of two or more elements in a fixed proportion results in the formation of a compound.
(d)
Answer to Problem 55A
Calcium and sulfur.
Explanation of Solution
The chemical formula of the calcium sulfide compound is
Chapter 2 Solutions
Chemistry 2012 Student Edition (hard Cover) Grade 11
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