What is the pressure in a 5.00 L tank with 4.65 miles of oxygen at 39.3 C

What semimetal can form four single covalent bonds.

H2so4(aq) + mg(s)—> mgso4(aq) +h2(g) which substance is the acid in the reaction?

This chart lists four kinds of polymers and their sources. what can be known about all four polymers, despite their differences? they come from living things. they share ionic carbon bonds. they are at least 100 monomers long. they are made of repeating subunits.