Alkali metals and Halogens
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Assessment
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Fathmath Afaf
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Chemistry
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8th - 10th Grade
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2 plays
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Easy
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58 questions
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1.
Multiple Choice
Group 1
Group 2
Group 7
group 8
2.
Multiple Choice
Lithium
Sodium
Potassium
3.
Multiple Choice
sodium oxide and hydrogen
sodium hydroxide and hydrogen
sodium hydroxide and oxygen
sodium hydroxide and carbon dioxide
4.
Multiple Choice
2Na + 2H2O → 2NaOH + H2
Na + H2O → NaOH + H
Na + H20 → NaCl + CO2
2Na + 2H2O → 2NaH2 + O2
5.
Multiple Choice
In a chemical reaction atoms are created
In a chemical reaction atoms are destroyed
In a chemical reaction the arrangement of the atoms is changed
In a chemical reaction the arrangement of the atoms remains the same, but the physical state (solid,liquid,gas) changes
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