Answer:
si. en los atomos los protones y los electrones llevan cargas electricas
A ground state electron configuration follows the Aufbau Principle that states that electrons should be filled up in orbitals in increasing energy. In the given sequences, the right configuration is <span>1s2 2s2 2p6 3s2 3p6 4s2 3d8. The choice that conforms to this sequence is D. In 2) the possible confirmation that follows Aufbau's principle is D. </span>
The temperature of water is cooler in deep oceans. The temperature there goes to 0°C to -3°C below which the water freezes. The water on the surface of the oceans and deep inside it varies because of the difference in energy of the two layers. One of the widest use of cold water is air conditioning. Cold water has a higher density than warm water. Water gets colder with profundity since chilly, salty sea water sinks to the base of the sea beds underneath the less dense hotter water close to the surface.
10 M
Technically, this is a bad question and the actual answer is impossible to determine. The reason for this is that molarity is DEFINED as moles per liter. There's no indication of the volume that 100.0 grams of solvent requires and hence there's no sure way of determining the molarity of resulting solution. But for this problem I will assume that the solvent is water and that the density of the solvent is 1 gram per milliliter and further, I will assume that after dissolving the solute into the solvent, the volume of the solvent doesn't change. So let's determine how many moles of solute we have:
23.0 g / 23.0 g/mol = 1 mol
So we have 1 mole of solute. And the volume of solvent is 100 ml or 0.100 liters. So
1 mol / 0.100 L = 10 mol/L = 10 M
As a side note. The usual method of producing a solution of known molarity is the dissolve the solute in a smaller quantity of solvent. Then after all of the solute has been dissolved, add more solvent until the desired volume of solution is reached. That compensates for the fact that the volume of the solution changes as solute is added. For instance, when adding sodium chloride to water, the volume actually DECREASES at lower concentrations before it finally starts to increase at higher concentrations of sodium chloride.