How many electrons are being shared between the two carbon atoms in the compound ethyne? ethyne has the lewis structure: h−c≡c−h

If 22.5 liters of oxygen reacted with excess of hydrogen, how many liters of water vapor could be produced?

Match the vocabulary terms to their definitions. 1 . a long, chain-like set of molecules made up of repeating units joined end to end polymer 2 . a hard, brittle, heat- and corrosion-resistant material made by subjecting a nonmetallic mineral mixture to intense heat ceramic 3 . a plastic with low elongations that cannot be recycled thermoset 4 . a carbon fiber embedded in a polymer resin matrix thermoplastic 5 . a plastic with high elongations that can be recycled crystal 6 . a solid form resulting from the arrangement of atoms, ions, or molecules in definite geometric patterns composite

Asubstance that will change shape to fit its container but has a definite volume is in a phase of matter