Answer:What property do protons and electrons have that neutrons don't? Protons and electrons are charged particles. Neutrons have no charge. Why isn't it possible for an atom to have a mass number of 10 and an atomic number of 12?
Explanation:
The model of the atom has dramatically changed over many many years.We learned atoms make up different substances and are the smallest particles of matter, which have subatomic particles that are very small portions of matter. At first scientist only thought there were electrons which are negatively charged.
<u>Answer:</u> The moles of oxygen and carbon dioxide in air is and respectively
<u>Explanation:</u>
To calculate the number of moles, we use the equation:
Given mass of atmosphere =
Average molar mass of atmosphere = 28.96 g/mol
Putting values in above equation, we get:
We know that:
Percent of oxygen in air = 21 %
Percent of carbon dioxide in air = 0.0415 %
Moles of oxygen in air =
Moles of carbon dioxide in air =
Hence, the moles of oxygen and carbon dioxide in air is and respectively
phosphorus in water is rapid combustion.