And it creates a waste product, oxygen gas.

它会产生废气，即氧气。

This reaction produces sodium chloride and oxygen gas.

这个反应产生氯化钠和氧气。

But oxygen gas was not this elusive elixir of life.

但是氧气并不能让人长生不老。

The oxygen out of the iron oxide comes off as oxygen gas.

氧化铁中的氧会以氧气的形式逸出。

And current leaving your saliva through the other lead creates oxygen gas, leaving hydrogen ions behind.

通过另一端离开唾液的电流生成氧气，留下氢离子。

Hydrogen gas is then vented into space while the oxygen gas is circulated within the cabin.

然后氢气被排放到太空中，而氧气在机舱内循环。

That's mostly the peroxide reacting with an enzyme inside the bacteria, called catalase, forming water and oxygen gas.

主要是过氧化物与细菌内部称作过氧化氢酶的一种酶正在进行反应，形成水和氧气。

While oxygen molecules have been around as long as Earth's oceans, oxygen gas didn't appear until ocean-dwelling microorganisms evolved to produce it.

虽然地球有海洋的时候就有氧分子了，但要到海洋中的微生物演化出生产氧气的能力之后才有氧气出现。

Various supply ships from space agencies are flown out to space where they may contact with the space station and deliver oxygen gas.

来自航天机构的各种补给船被送往太空，在那里它们可以与空间站联系并运送氧气。

That’s mostly the peroxide reacting with an enzyme inside the bacteria, called catalase, forming water and oxygen gas.

这主要是过氧化物与细菌内的一种酶反应，称为过氧化氢酶，形成水和氧气。

But we're gonna say that it's 10 liters, and we'll to say that it contains 4 moles of helium and 1.1 moles of oxygen gas.

但我们会说它是 10 升， 我们会说它包含 4 摩尔的氦气和 1. 1 摩尔的氧气。

Structures in their cell membrane could harness the energy from sunlight to turn carbon dioxide and water into oxygen gas and sugars, which they could use for energy.

它们细胞膜中的结构可以利用来自阳光的能量将二氧化碳和水转化为氧气和糖，它们可以用作能量。