Model, Embryonic Development, 12 stages, represents the development of the human germ cells from fertilisation until the end of the 2nd month of pregnancy in 12 stages, tests for the embryological specialist field, Dimensions: 65 x 34.5 x 6 cm, weight: 0.832 kg
Introductory Chemistry Set, Includes: Hydrogen/Carbon/Oxygen/Nitrogen/Sulfur/Phosphorus/Chlorine/Fluorine/Bromine/Iodine atoms, Gray links for single and double bonds, Contains 120 durable plastic, Economical model set used for General or Organic Chemistry course
Balancing Act Set, Includes: 8 Black carbon atoms, 20 White hydrogen atoms, 26 Red Oxygen atoms, 26 Gray links for single bond, 32 Gray links for double bond, Makes learning to balance chemical equations fun and easy, Hands-on molecular models to simulate combustion reactions
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