Since I cannot find the choices, I will tell you some of the benefits of electroplating in different industries. You can compare these benefits with the choices you have and choose the best fit.
1- Forms a protective layer to protect the material from the conditions of the atmosphere as the corrosion
2- Improves the appearance of some inexpensive materials and makes them look more appealing
3- Can enhance the electrical conductivity of materials
4- electroplating of zinc-nickel or gold can survive high temperatures
5- Sometimes hardens the material
6- Increases the thickness of the material
Answer: 7366.328 kPa
explanation: the critical pressure of carbon dioxide is 72.7 atm.
The nucleus!! This is made up of protons and neutrons that each weigh about 1 amu.
Electrons are not found in the nucleus and weigh almost nothing so chemistry in school doesn’t bother with them :)
Mole ratio:
<span>2 H2 + O2 = 2 H2O
</span>
2 mol H2 ---------- 1 mol O2
1.67 mol H2 ------ ??
1.67 x 1 / 2 => 0.835 moles of O2
Answer:
these atoms are stable because a stable atom has a net charge of 0. In other words, it has an equal number of protons and electrons. The positive protons cancel out the negative electrons. In this question they mention that the number of electrons is 8, now if we see the proton/atomic number of oxygen, it is also 8. Therefore, the net charge becomes zero and hence the atoms are stable.
hope that helps..
