How many significant figures are in the number 020.310

Arollercoaster car at the top of a hill has potential energy kinetic energy chemical energy light energy

Drag each label to the correct location on the chart. classify each reaction as endothermic or exothermic.

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?