Chemistry, 28.07.2019 05:30 QueenNerdy889
In the symbol he, the superscript 4 is the for helium, and the subscript 2 is the for helium. all of the answers i've looked up have been wrong. i believe i've found the answer. look on page 293 of your textbooks. the textbook says, "the common symbol for an alpha particle is 4/2 he. the subscript is the atomic number (the number of protons). the super- script is the mass number (the sum of the numbers of protons and neutrons)."therefore the answer should be: super-script 4 is the mass number, subscript 2 is the atomic number
Answers: 1
Chemistry, 22.06.2019 07:00
The boiling point of propanoic acid is higher than that of 1-butanol because: propanoic acid has a higher molecular weight than 1-butanol. propanoic acid is more soluble in water than 1-butanol. propanoic acid is a better hydrogen bond donor than 1-butanol. propanoic acid forms hydrogen bonded dimers and 1-butanol does not. 1-butanol forms hydrogen bonded dimers and propanoic acid does not.
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Chemistry, 22.06.2019 14:00
In the space, show a correct numerical setup for calculating the number of moles of co2 present in 11 grams of co2
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Chemistry, 22.06.2019 15:00
Describe what happens to the molecules as water goes from ice to liquid to vapor. be sure to explain what happens to the temperature during the phase changes.
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In the symbol he, the superscript 4 is the for helium, and the subscript 2 is the for helium. all...
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