When is a molecular compound named as an acid?

How many miles of water are produced if 5.43 mol pbo2 are consumed

The table describes how some substances were formed substance 19 description formed by boiling pure water formed by combining three hydrogen atoms to every nitrogen atom formed by adding 5 g of sugar to 1 l of water formed by compressing carbon under high pressure based on the given descriptions, which substance is most likely a mixture?

Which change to the system wood cause the freely-moving piston to lower?