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[explainedchemistry]

Simplification of Precipitation equations: Mole Course (14)

Fundamental Chemistry: Moles and Concentration Calculations Course (14) Precipitation reactions occur when aqueous solutions react to produce a solid precipitate. These equations can be simplified similarly to ion equations. Initially, we list the ions participating in the reaction, then remove the ions that don’t get involved in the formation of the precipitate. Exercise 1 Write the…

[ittybittytatertot]

The CrushCourse said those episodes were to revisit Conner and M'gann's relationship. I guess Depths is there more for the scene of Conner and M'gann talking about what happened between them in the time skip between S1 and S2 tthan for the Artemis fake death. I think that makes more semse anyway😅

I know but the fact that they chose that episode but not also the one where she admits to Conner what she did to Kaldur and they start their reconciliation? Is it too big a coincidence perhaps?

[explainedchemistry]

sp2 Hybridization: Covalent Bonds Course (19)

Course Chemical Bonds: Covalent Bonding and Shapes of Molecules (19) Hybridization sp2 Hybrid Orbitals—Bond Angles of Approximately 120° In sp2 hybridization, the s orbital hybridizes with two p orbitals. We say “2” indicating the number of involved p orbitals. Notice, this leaves one p orbital unhybridized. This orbital typically forms the pi covalent bond. Here, carbon is sp2 hybridized,…

[explainedchemistry]

Balancing Ionic Equation: Mole Course (13)

Fundamental Chemistry: Moles and Concentration Calculations Course (13) Balancing ionic equations: When ionic compounds dissolve in water, they separate into ions. However, not all ions participate in the reaction. Those ions that do not actively engage in the chemical reaction are termed spectator ions. The ionic equation provides a simplified representation of the chemical equation by…

[explainedchemistry]

How to Calculate Formal Charge (Covalent bonding: 10)

Course Chemical Bonds: Covalent Bonding and Shapes of Molecules (10) How do we determine and assign formal charges? Formal charges represent the charge on ions, as seen when we write “minus” above the nitrate ion or “plus” above the ammonium ion. So, how do we decide when to use “minus” for the nitrate ion (NO3–) and “plus” for the ammonium ion (NH4+)? The first step in assigning the formal…

[explainedchemistry]

The mole and  Avogadro’s constant (4)

Fundamental Chemistry: Moles and Concentration Calculations Course (4) A single water molecule consists of one oxygen atom with a relative atomic mass (Ar) of 16 and two hydrogen atoms, each with an Ar of 1.0. The mass ratio H:O of water molecule is 2:16. Molecule are very tiny to weigh which presents challenges for direct measurement, to overcome this problem, scientists introduced the…

[explainedchemistry]

The Lewis Structures For Molecules And Polyatomic Ions (9)

Course Chemical Bonds: Covalent Bonding and Shapes of Molecules (9) How can we draw the Lewis structure for molecules and polyatomic ions where there are bonds between atoms? For example, in a water molecule, there are two hydrogen atoms and one oxygen atom. The oxygen atom possesses six valence electrons, whereas each hydrogen atom has only one. To satisfy the octet rule, oxygen requires two…

[explainedchemistry]

The Types of Chemical Bonds (9)

Course Chemical Bonds: Covalent Bonding and Shapes of Molecules (9) p atomic orbital + p atomic orbitals --> pi (π) molecular orbitals Full Course Link: Covalent Bonding and Shape of Molecules Subscribe to get updated when we upload a new lecture Type your email… Subscribe

[explainedchemistry]

The Octet Rule and Chemical Bonds

Course Chemical Bonds: Covalent Bonding and Shapes of Molecules (6) Understanding the Octet Rule The octet rule is a basic rule of chemistry that explains how valence electrons behave in chemical reactions. Valence electrons are the electrons that participate in chemical reactions. Atoms tend to form bonds by gain, lose or share valence electrons in ways that give them eight electrons in their…