Explanation:
The electronic configuration of an atom can be represented by either sublevel notation or using shell notations.
Sublevel notations shows the sequence of filling electrons into the orbitals of the sublevels.
Shell notations are used to denote the electrons in all orbitals of each energy level.
Element Number of electrons Sub-level notation shell notation
Mg 12 1s² 2s² 2p⁶ 3s² 2 8 2
Liquid solid gas 4th state of matter is plasma not powder
Answer:
Both b/c a chemical formula tells you how many and a sketch formula shows how they are bonded together.
Molecular formulas show how many atoms of each element one molecule of a compound contains. Note: Ionic compounds are generally crystalline solids with high melting points. Other compounds, however, have very different properties.
Answer:
Reaction equilibrium will shift to the left (higher molar volume side of process).
Explanation:
For gas phase reactions, changes in pressure-volume conditions cause a stress on the process equilibrium shifting away from the applied pressure-volume change.
LeChatlier's Principle states for a gas phase reaction at equilibrium ...
if the pressure is increased (volume decreased) the reaction will shift toward the lower molar volume side of the process.
if the pressure is decreased (volume increased) the reaction will shift toward the higher molar volume side of the process.
if the sum of molar volumes of reactants equals the sum of molar volumes of products, changes in pressure-volume conditions will NOT affect the equilibrium stability. Example => H₂(g) + Cl₂(g) ⇄ 2HCl(g) will not be affected by P-V changes as ∑Vm(reactants) = ∑Vm(products).
Taking into account the definition of density, the density of the cubic block of ice is 1.077
In first place, density is defined as the property that matter, whether solid, liquid or gas, has to compress into a given space.
In other words, density is the relationship between the mass of a substance (or a body) and its volume. It is an intrinsic property of matter, since it does not depend on the amount of substance that is considered.
The expression for the calculation of density is the quotient between the mass of a body and the volume it occupies:
In this case, you know:
- mass= 1400 grams
- volume= 1300 cm³
Replacing in the definition of density:
Solving:
density= 1.077
Finally, the density of the cubic block of ice is 1.077
Learn more about density: