实验报告英语作文模板
    英文回答：
    Introduction。
    The purpose of this experiment was to investigate the effect of temperature on the rate of a chemical reaction. The reaction studied was the decomposition of hydrogen peroxide (H2O2) into water (H2O) and oxygen (O2). The hypothesis was that the rate of the reaction would increase as the temperature increased.
    Methods。
    The experiment was conducted by measuring the volume of oxygen produced over time at different temperatures. The following materials were used:
    100 mL of 3% hydrogen peroxide solution。
    10 mL of catalase enzyme solution。
    250 mL graduated cylinder。
    Thermometer。
    Stopwatch。
    The procedure was as follows:
    1. The hydrogen peroxide solution was poured into the graduated cylinder.
    2. The catalase enzyme solution was added to the hydrogen peroxide solution.
    3. The stopwatch was started.
    4. The volume of oxygen produced was recorded every minute for 10 minutes.
reaction rate    5. The temperature of the solution was recorded every minute for 10 minutes.
    Results。
    The results of the experiment are shown in the table below.
    | Temperature (°C) | Volume of Oxygen (mL) |。
    |---|---|。
    | 20 | 20 |。
    | 30 | 30 |。
    | 40 | 40 |。
    | 50 | 50 |。
    As the temperature increased, the rate of the reaction increased. This is because the higher the temperature, the more energy the molecules have, and the more likely they are to collide and react.
    Conclusion。
    The hypothesis was correct. The rate of the reaction increased as the temperature incre
ased. This is because the higher the temperature, the more energy the molecules have, and the more likely they are to collide and react.

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