9. Magnesium reacts with hydrochloric acid according to th following equation:
Mg(s) + 2HCl(aq) MgCl (aq) + H2(g)
What mass of hydrogen will be obtained if 100 cm of
2.00 mol dm HCl are added to 4.86 g of magnesium?
A. 0.2 g
C. 0.8 g
B. 0.4 g
D. 2.0 g

space exploration has led to the development and technological improvement of many everyday items. (if this answer is wrong i will find the right answer) : )

plasma is the state of matter where the substance is ionized and has no definite shape or volume. the fact of being ionized makes the substance a good electrical conductor.

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