Episode 6:電解時兩極酸鹼的變化

這個顏色怎麼樣?

How about this color?

兩邊不一樣吧?

Aren't the two sides different?

來,正極變什麼顏色?

Come on, what color does the positive electrode turn?

黃

Yellow

代表它酸鹼性變怎樣?

What does it mean for its acidity and alkalinity to change?

好,正極會有酸性跑出來

Okay, the positive electrode will have acidity coming out.

負極呢?

Where is the negative electrode?

打開

Open

有沒有看到它顏色?

Did you see its color?

藍的

Blue

那代表它酸鹼變成?

That means its acidity and alkalinity has changed?

鹼性

Alkaline

所以在正負極的電解的過程中

So in the process of electrolysis at the positive and negative electrodes.

它的pH值也會變

Its pH value will also change.

正極會變成有酸性

The positive electrode will become acidic.

負極會變成有鹼性

The negative electrode will become alkaline.

這個結果先記起來

Remember this result for now.

下禮拜我們用化學式

Next week we will use chemical formulas.

去表達剛剛你們看到所有的東西

To express everything you just saw.

OK

OK

好

Good.