Answer:
Hydrogen
1. has one electron in the outermost shell
2.It is less electronegative
Oxygen
3.It requires two electrons to complete its outer shell
4.It is more electronegative
Explanation:
Each hyrogen of two will share its electron with oxygen.Oxygen requires two electrons to complete its outer shell so it will share with two hydrogen. Covalent bonds formed will be polar as oxygen will attract electrons towards it due to high electronegativity. This happens in water molecule
Answer:
26.81 moles
Explanation:
From the coefficients of the equation, we know that for every 2 moles of iron(III) oxide produced, 7 moles of oxygen are consumed.
So, the answer is 7.66(7/2), which is 26.81 mol.
Explanation:
A mole is the amount of matter or substance that contains the Avogadro's number of particles.
1 mole of a substance = 6.02 x 10²³ atoms
Now solving:
a:
1.2 x 10² atoms ;
Number of moles =
= 2.0 x 10⁻²¹moles
b:
3.87 x 10²¹ molecule:
Number of moles =
= 6.4 x 10⁻³moles
c. 4.81 x 10¹⁴ molecules:
Number of moles =
= 8.0 x 10⁻¹⁰moles
Number of molecules = number of atoms = formula units
learn more:
Number of moles brainly.com/question/1841136
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You don’t have any charge outside of the nuclear
The solubility of NaCl in water will not be affected by an increase in pressure.
We know that the density of NaCl(s) in 2.165 g/cm³ at 25 °C and we want to know how will its solubility in water be affected when the pressure is increased.
<h3>What is solubility?</h3>
Solubility is the maximum mass of a solute that can be dissolved in 100 grams of solvent at a determined temperature.
The solubility of a solid, such as NaCl, in a liquid, is mainly affected by the temperature. However, since solids are not compressible, an increase in pressure will not affect its solubility.
On the other hand, the solubility of gases in water will increase with an increase in pressure, as stated by Henry's law.
The solubility of NaCl in water will not be affected by an increase in pressure.
Learn more about solubility here: brainly.com/question/11963573