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Q5: According to the quantum mechanical model, electrons
Q6: An apparent solar day is<br>A)the interval between
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Q8: A strong acid is a concentrated solution
Q13: Esters give flowers and fruits their characteristic
Q21: In the notation "2p<sup>4</sup>", the 4 refers
Q25: J.J.Thomson discovered that cathode rays were really
Q28: A mirage is caused by hot air
Q82: Which of the following is NOT one
Q94: When sitting at a properly set up