Change: Phases Of Matter

S contains the compound M. S = Earth.
(a) Determine M if its phase diagram is as follows:

Phase Diagram of C0<sub<2</sub

(b) What phases of M can exist at normal conditions, that is, at 1 atm (atmospheric pressure)?

Grouping/Interaction: Amphoteric Substances

Let M be contained in S. Suppose the components of M are the gases m1 and m2 and S is the Earth. Determine m1 and m2 and their respective proportion in one molecule of M, if m2 is heavier than m1 and M is the most common amphoteric substance on Earth.

Grouping/Interaction: Oxidation - Reduction (Redox)

The common meaning of "burning" is the combining of fuel with oxygen in air. Can "burning" occur in the absence of atmospheric oxygen?

Grouping/interaction: Acids & Bases

What is an acid, a base and a salt?

Over the years, chemists have discovered various ways of working with substances. As a result, the definitions of many substances have evolved accordingly.

Motion: Hello! from Mars to Earth

A station X on Earth is 8 x 107 km away from a surface probe on Mars. The probe transmits radiowaves to X at a frequency of 6 x 105 per second. How long does it take the radiowaves to get to X?

Grouping/Interaction: Octane Combustion

The weight of 4 liters of octane gasoline is 3.19 kg. Determine the volume of air required for its complete combustion at standard temperature and pressure (S.T.P).

Motion: Money Supply

Money, money everywhere. Do you have some of it? If yes, how did you get it? If no, why don't you have it?

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