Post 4 Chemical Reactions

In transfer of electrons, or RedOx, is electrons being transferred from the metal to the non-metal.
There are five main types of RedOx reactions that are further explained in this website although they call synthesis combination.
boundless
Also, the element being oxidized, losing electrons, is the reducing agent while the element being reduced, gaining electrons, is the oxidizing agent. When giving those agents, look at the reactants, not the products.
Furthermore, during single replacement, for an element to "attack" or replace another in the compound, it must be higher on the Acid Strength Table (Reactivity Series for Metals) hence why Li can replace anyone and Au can not.

Post 3 Chemical Reactions

Acid/Base Reactions: produce water and a 'salt' and salt is a cation of a base and anion of an acid.
To tell a strong acid, typically see if the O outnumbers the H by two or more. Another way is if there is only one H and no oxygen in cases of the diatomic elements (BrICl).
Here's a website that goes in to further detail. chemguide
To tell a strong base, they contain -OH anions and you can find more here. chemguide
Also here's a website over acid base reactions. crashcourse
When you're tired of studying, here's a great video to cheer you up. acapellascience2
 

Post 2 Chemical Reactions

We have now been learning on balancing and writing the products of the reactants which, unlike the previous method, requires two ionic aqueous compounds that switch elements in the product. You must then determine if the resultant is aqueous (spectator ions) or solid (the reactants) using the solubility rules. Here's a link that provides interesting ways to remember these rules. youtube
And here's another video to go over the equations along with other review. CrashCourse

Post 1 Chemical Reactions

We just started a new unit beginning with the CHO method and combustion of balancing equations.
Combustion: 1. will always react with oxygen,
                     2. is an exothermic reaction
                     3. always produces CO2 and H2O
We began are unit with just balancing equations. If the prefix is represented in a decimal, the whole equation should be multiplied to equal whole numbers. Also, don't forget that, opposed to the common nomenclature rules, methane is CH4 and ammonia is NH3.
Here's a good video to start the unit off. khanacademy
 

Post 4 Chemical Composition

Monday is the test and I have been studying mostly significant digits, converting moles, and units. Don't forget the diatomics HOFBrINCl which is doubled the mass when alone. Here's a good review for converting moles.
khanacademy

Post 3 Chemical Composition

Today was the Formula of a Chloride Lab which included heating a mixture of Zinc and HCL to get a compound in which you had to determine the formula using the data found. Using the given data, my partner and I determined the formula to be ZnCl2. Here's a few websites that can help.
chemteam
tamu
about
youtube

Post 2 Chemical Composition

So we are now learning about hydrate compounds and anhydrates. The nomenclature of hydrates stays relatively the same, but don't forget to name the number of water molecules (type III prefixes) before the hydrate/hydride. To calculate this number convert both the mass of the crucible and the mass of the hydrate to moles using the amount in grams divided by the total mass of the molecules/compound. You then divide the large number (moles of H20) by the smaller (moles of anhydrous salt) to get x (value of hydrate).
Here's a reminder over the nomenclature. purdue
And here's a practice of my worksheet.

Post 1 Chemical Composition

Yesterday we took the pretest which was very difficult and worries me for the future. Today we learned about converting units using mole, 6.02 × 10 ²³, and the mole road map.
Here's a website that helps explain converting grams to moles.
ChemTeam