acids

Acids neutralize alkalis and vice versa.

酸能使碱中和,碱亦能使酸中和.

There are many amino acids that the body cannot synthesise itself.

有许多种氨基酸人体自身不能合成.

There are many amino acids that the body cannot synthesize itself.

有许多种氨基酸人体自身不能合成。

What's the scale that's used to compare the strength of acids and alkalis?

用何种标准来比较酸碱度？

Some acids are strong enough to burn the wood.

有些酸的酸性强得可以烧坏木头.

How do acids react on metals?

酸对金属会起什么样的化学反应?

Strong acids attack metals.

强酸性物质腐蚀金属.

Zinc displaces the hydrogen of dilute acids.

锌置换了稀酸中的氢.

Metals are eroded by acids.

金属易为酸所腐蚀.

Acids eat into metals.

酸会腐蚀金属.

Rust and acids are corrosive.

锈与酸都是腐蚀性的.

Ulcers occur when the stomach's natural acids eat into the lining of the stomach.

胃酸侵蚀胃内壁引发溃疡。

Acids in the stomach destroy the virus.

胃酸能杀死病毒。

The preparation of salts of thionic acids illustrates this point.

硫逐酸盐的制备说明这一点.

Ribose and deoxyribose are constituents of the nucleic acids RNA and DNA.

核糖与脱氧核糖分别是核糖核酸与脱氧核酸(DNA)的结构成分.