Look! The cat likes this ______.

实验室里常用锌和稀硫酸反应来制取氢气．林辉同学取6.5g锌并加入50g一定质量分数的硫酸溶液，恰好完全反应后，得到56.3g硫酸锌溶液．发生反应的化学方程式是：

Zn+H₂SO₄═ZnSO₄+H₂↑．请你计算：

根据短文选择正确答案。

A: Good morning, Tom.

B: Good morning, John. Where are you from?

A: I'm from America, And you?

B: I'm from London.

A: What's Big Ben like?

B: It's tall and old .

A: Do you know London Bridge?

B: Yes. It's falling down.

A: It's very famous.

B: Yes. Welcome to London.