A proton has about 1836 times the mass of an electron. The best estimate of physicists is that the radius of a proton is about 8×10-16m and the radius of an electron is about 10-16m . If they are correct, then a proton has about ten times the diameter of an electron
<u>Answer:</u> Electrons are taken up by 
and they are lost by 
<u>Explanation:</u>
Redox reaction is defined as the reaction in which oxidation and reduction take place simultaneously. It is also called the reaction where the exchange of electrons takes place.
An oxidation reaction is defined as the reaction in which a chemical species loses electrons takes place. In this reaction, the oxidation state of a substance gets increased.
A reduction reaction is defined as the reaction in which a chemical species gains electrons takes place. In this reaction, the oxidation state of a substance gets reduced.
For the given chemical reaction:
The half-reactions for this redox rection follows:
<u>Oxidation half-reaction:</u> 
<u>Reduction half-reaction:</u> 
Hence, electrons are taken up by and they are lost by
K + 02 ---> K20
4K + O2 ---> 2K2O
The answer should be (4) they are negative subatomic particles and are found surrounding the nucleus. The nucleus is formed by neutrons and protons. Neutrons are neutral and protons are positive.
Answer:
Water volume produced is 7.3 mL
Explanation:
This the reaction:
4NH₃ (g) + 5O₂ (g) → 4NO (g) + 6H₂O (g)
We have to work with density, to solve this question
Density of ammonia = Ammonia mass / Ammonia volume
0,00073 g/mL = Ammonia mass / 6300 mL
(Notice, we had to convert 6.3L to mL)
0.00073 g/mL . 6300 mL = Ammonia mass → 4.599 g
Mass / Molar mass = Mol
4.599 g / 17g/m = 0.270 mole
Ratio is 4:6
4 mole of ammonia produce 6 mole of water
0.270 mole produce (0.270 .6)/4 = 0.405 mol
Molar mass . mole = mass
18 g/m . 0.405 m = 7.30 g
Water density = 1 g/mL
Water density = Water mass / Water Volume
1g/mL = 7.30 g / Water volume
Water volume = 7.3 mL
