Half of the universe's hydrogen has been missing since the Big Bang 13.8 billion years ago, but scientists reckon they've ...

Hydrogen's role as a clean energy source is expanding, driving demand for accurate flow measurement in diverse applications from refining to power generation.

For that, we can turn our word equation into a symbol equation ... it fizzes as a gas is produced.The products are hydrogen gas, and the salt magnesium sulfate. The symbol for magnesium is ...