Alkynes are hydrocarbons that characteristically have
a) one single bond between two hydrogen atoms.
b) one double bond between two carbon atoms.
c) one triple bond between two carbon atoms
d) two double bonds between two pairs of carbon atoms.
c
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In most cases, which expands more for comparable changes in temperature?
A) solids. B) liquids. C) gases. D) all expand about equally.
The melting point of aluminum is 660°C, the latent heat of fusion is 4.00 × 105 J/kg, and its specific heat is 900 J/(kg K). 300 kJ of heat are added to 442 g of aluminum at 100°C, what is the final state of the system?
What will be an ideal response?
Rocks that formed from the cooling of molten material are classified as
a. discordant. b. metamorphic. c. sedimentary. d. igneous.
What happens to the nucleus as a result of gamma radiation?
a. A change in state to the ground state, if possible. b. An increase in atomic mass. c. An increase in the atomic number. d. A change in state to a higher energy state. e. A decrease in the atomic number.