Physics, 30.08.2019 12:50 bvaughn5915
The sun is composed mostly of hydrogen. the mass of the sun is 2.0 * 10^30 kg, and the mass of a hydrogen atom is 1.67 * 10^-27 kg. estimate the number of atoms in the sun.
Answers: 1
Physics, 22.06.2019 18:30
What would people living along the coast in south florida do if there was a hurricane warning? move to locations away from the water flock along coasts to watch the natural phenomenon buy instruments to predict the exact location of the hurricane measure water levels to know the exact time of the hurricane
Answers: 3
Physics, 23.06.2019 00:00
Examine the drawing of a molecule. each ring represents an atom of nitrogen (n). what’s the chemical formula of this substance?
Answers: 2
Physics, 23.06.2019 09:30
According to rutherford's nuclear theory, most of the volume of an atom is , so the volume of a hydrogen atom cannot be mostly due to the proton.according to rutherford's nuclear theory, the core of an atom (nucleus) contains most of of an atom and is , so the majority of the mass of a fluorine atom cannot be due to its nine electrons.according to rutherford's nuclear theory, the number of negatively charged particles outside the nucleus the number of positively charged particles within the nucleus, so a nitrogen atom has 7 protons and 7 electrons, while a phosphorous atom cannot have 15 protons and 150 electrons.word bank: dense, empty space, more than, mass, particles, the same as, less than, positively charged, negatively charged
Answers: 2
The sun is composed mostly of hydrogen. the mass of the sun is 2.0 * 10^30 kg, and the mass of a hyd...
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