13 is d
12 is a that's all I know sorry
Answer:
1.977 g/L
Nitrous oxide
Names
Molar mass 44.013 g/mol
Appearance colourless gas
Density 1.977 g/L (gas)
Melting point −90.86 °C (−131.55 °F; 182.29 K)
Answer:
The materials which are not attached by a magnet are called non- magnetic materials. All the substances other than iron, nickel, and Cobalt are non-magnetic substances.
this is what i foudn-By its definition as a homogeneous solid, a mineral is composed of a single solid substance of uniform composition that cannot be physically separated into simpler chemical compounds. ... Most rocks are composed of several different minerals; e.g., granite consists of feldspar, quartz, mica, and amphibole.
hope this is helpful.
98.079 g/mol
Is that what ur asking?
