Gases and how they combine
Contributors: Ward's Natural Science Establishment, inc.
Edition: 2nd ed.
Series: CHEM study -- v. 12
Publisher: Ward's Natural Science Establishment, Inc.
Place of publication: Rochester, N.Y
Format: Videorecording
Number of pages: 22
Subjects: Gases.
Description: Shows some properties that distinguish gases.  The volume of ammonia and hydrogen chloride that combine are measured quantitatively, and simple integer volume ratios are measured for the combinations of hydrogen and chlorine.  Interprets these simple integer ratios in terms of Avogadro's hypothesis.
Notes: Science consultant George C. Pimentel ; teacher's guide revision prepared by William Kieffer, Marageret Carlberg and margaret Nicholson.

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