题干

实验室制取少量N2常利用的反应是NaNO2+NH4Cl =NaCl+N2↑+2H2O,关于该反应的说法正确的是(   )

A:NaNO2是氧化剂

B:生成1分子N2时转移的电子数为6个

C:NH4Cl中的N元素被还原

D:N2既是氧化剂又是还原剂

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A

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    The booking notes of the play “The Age of Innocence”:

    Price: $10

    DISCOUNTS;

    Saver: $2 off any seat booked any time in advance for performances from Monday to Thursday. Savers are available for children under 16, over 60s and full-time students.

    Supersaver: Half-price seats are available for people with disabilities and one companion. It is advisable to book in advance. There is a maximum of eight wheelchair spaces available and one wheelchair space will be held until an hour before the show.

    Standby: Best available seats are on sale for $6 from one hour before the performance for people eligible (suitable) for Saver and Supersaver discounts and thirty minutes before for all other customers.

    Group Bookings: There is a ten percent discount for parties of twelve or more.

    School: School parties of ten or more can book $6 standby tickets in advance and will get every tenth ticket free.

    Please note: We are unable to exchange tickets or refund (退款) money unless a performance is cancel led due to unforeseen circumstances.

BOOKING:

    There are four easy ways to book seats for performance:

    In person: The Box Office is open Monday to Saturday, 10a. m.- 8pm.

    By telephone: Ring 01324976 to reserve your tickets or to pay by credit card (Visa, MasterCard and Amex accepted).

    By post: Simply complete the booking form and return it to Global Theatre Box Office.

    On line: Complete the on-line booking form at www. Satan fiedtheatre. com.