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<p>is infeasible as a conductor for most terrestrial applications as it reacts quickly with atmospheric oxygen, its use as such in space has been considered.</p>

<p><big>Chemical properties</big></p>
<p>The chemistry of calcium is that of a typical heavy alkaline earth metal. For example, calcium spontaneously reacts with water more quickly than magnesium but less quickly than strontium to produce <a href="page.php?w=calcium_hydroxide">calcium hydroxide</a> and hydrogen gas. It also reacts with the <a href="page.php?w=oxygen">oxygen</a> and <a href="page.php?w=nitrogen">nitrogen</a></p><p>
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