4.8 Gibbs

The first major topic of this chem talk was the discussion of spontaneity. When talking about change the two most important aspects are system and surroundings. If system was an open system then energy is able to pass through the system and its surroundings. On the other hand, a closed system is a system that

Checking up

Spontaneous reaction-a reaction that continues on to react once it begun  How fast will the reaction occur? What does the reaction cause the particles to act like? Endothermic-breaking and requires energy Exothermic-bond is formed and there is a release of energy bonds keep atoms together salt water and Mg catalyst creates a path that requires

Chem Talk 4.7

This Chem talk mainly focused on the discussion between exothermic and endothermic reactions. In endothermic heat is absorbed and in exothermic heat is released. An important aspect discussed about this were spontaneous reactions. These are reactions that when begun they continue without a single input of energy. To know if a reaction is spontaneous, it

4.6 Chem talk

The chem talk started off by discussing electrolytes which are certain nutrients present in your body. Also electrolytes dissolve in water and create solutions that conduct electricity. This is what our lab in class explained. We built a circuit with wire and LED light which determined whether or not a substance would be conductive to electricity.

Chem talk 4.4

The Chem talk started off by talking about metals and their properties which was something already known to me. Metals are shiny, they conduct electricity, they are used in electric circuits and are conductors of heat. The Chem talk followed through by talking about metal activity. For hundreds of year, chemists have experiment with different metals

4.3 Chem Talk

Stoichiometry! This Chem Talk started off by introducing the basics such as a mole and molar mass. A mole is simply a counting word that is used to count very large quantities of something very small. We usually use moles to count atoms and molecules. One mole of everything is ALWAYS the same quantity. The key

Chem talks

CU: 1: Molecule’s polarity-difference in charge towards an atom 2:London dispersion- forces are attractive and weaker than ionic and covalent. This is usually happening with large molecules because it is easier to charge their charger.  3: C5H12 CTG: 4: B

Chem Talks

Another day, another Chem talk! This Chem talk focused primarily on Intermolecular forces and kinetic Molecular motion. So what’s the difference? Intermolecular forces are the forces that attract between the molecules. And Molecular motion on the other hand is where all in the molecules are in constant motion. In class we spoke about many different

3-D shapes

In class we have started learning about how to create 3-d drawings and models of molecules. However, before starting this, we had to review covalent bonds, which still sometimes seem like a challenge to me. When looking at covalent bonds, the Lewis dot structure really helps with it because it illustrates the valence electrons. In

3.6 Chem Talk

The most recent Chem Talk discussed the idea of chemical reactions. In most cases, chemical reactions occur in water when ions combine and create reactions. When these ions combine, it results two solution which can be both solids and solutions. Usually stronger attractions create solids. This Chem Talk also talked a lot about equations. Balancing