Silicon has 14 protons and it should have at least 12 neutrons
Answer:
The first theory states that the rings formed at the same time as the planet. Some particles of gas and dust that the planets are made of were too far away from the core of the planet and could not be squashed together by gravity. They remained behind to form the ring system.
Explanation:
2nd group of the periodic table
Answer:
1) hydrogen peroxide should be stored in dark bottles away from light
2) hydrogen peroxide should be stored in a cool place.
3) Drops of sodium phosphate may be added to inhibit its catalytic decomposition
Explanation:
Hydrogen peroxide is known to dissociate according to the equation;
2H2O2--->2H2O+O2.
This decomposition is facilitated by the following factors;
1) heat
2) light
3) presence of trace amounts of a catalyst
This implies that, if the user stores the hydrogen peroxide in a dark bottle, away from sunlight. It decreases its chances of decomposition.
Similarly, if the hydrogen peroxide bottle is stored in a cool environment, it is not decomposed by heat.
Lastly, drops of an inhibitor such as sodium phosphate may be added to inhibit the effect of any catalyst that may have mistakenly contaminated the hydrogen peroxide sample.
Answer:
1 mole = 6.02 x 1023 atoms
Explanation:
6.5 moles 6.02 x 1023 atoms = 3.9 x 1024 atoms
