Chemistry, 09.10.2020 23:01 savannahvargas512
A student wants to draw a model of an atom. Which statement describes how to find the number of neutrons to include in the model?
A.) Subtract the atomic number from the mass number.
B.) Add the atomic number and the mass number.
C.) Add the number of electrons to the number of protons.
D.) Subtract the number of electrons from the number of protons.
Answers: 1
Chemistry, 23.06.2019 01:00
Heat energy, carbon dioxide, and water are released through which process? a. photosynthesis b. depolymerization c. digestion d. cellular respiration
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Chemistry, 23.06.2019 08:30
According to the passage, which of these is true about gray water systems? a) gray water systems use plants that require less water. eliminate b) gray water systems require the use of less fossil fuels. c) gray water systems reduce the amount of fresh water used. d) gray water systems reduce the amount water used by shower heads.
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Chemistry, 23.06.2019 10:20
El amoniaco y el fluor reaccionan para formar tetrafluoruro de dinitrogeno y fluoruro de hidrogeno. segun la reaccion: nh3 + f2 ⇒ n2f4 + hf si reaccionan 5 gramos de amoniaco y 20 gramos de fuor, ¿cuantos gramos de fluoruro de hidrogeno se producen?
Answers: 2
A student wants to draw a model of an atom. Which statement describes how to find the number of neut...
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