SS1: CHEMISTRY – 1ST TERM
- Introduction to Chemistry and Laboratory Apparatus | Week 15 Topics|1 Quiz
- Nature of Matter | Week 23 Topics|1 Quiz
- Separation Techniques I | Week 31 Topic|1 Quiz
- Separation Techniques II | Week 45 Topics|1 Quiz
- Particulate Nature of Matter I | Week 55 Topics|1 Quiz
- Particulate Nature of Matter II | Week 69 Topics|1 Quiz
- Symbols, Formulae & Oxidation Number | Week 77 Topics|1 Quiz
- Laws of Chemical Combination | Week 84 Topics|1 Quiz
- Chemical Equation & Chemical Combination (Chemical Bonding) I | Week 94 Topics|1 Quiz
- Chemical Combination (Chemical Bonding) II | Week 104 Topics|1 Quiz
- Chemical Combination (Chemical Bonding) III & Shapes of Covalent Molecules | Week 113 Topics|1 Quiz
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- Question 1 of 4
1. Question
Consider the reaction represented by the equation
MnO2(s) + XHCl(aq) Â \( \underset{heat}{\rightarrow} \) MnCl2(aq) + YCl2(g) + ZH2O(l).
The values of X, Y, Z are respectively
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2. Question
The numerical coefficients in a balanced equation give the ______
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3. Question
Atoms combine to attain the octet or duplet structure of _____gases
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4. Question
In the periodic table, elements in the same group have _____ number of electrons in their shell
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