Balancing Chemical Equations 4/16/17

Summary:
Balancing equations may sound difficult to do, but there are a few simple steps to follow that can make sure that you balance an equation correctly. First of all, you need to an equation to balance. Obviously you need an unbalanced equation to be able to balance it. Next, you need to draw boxes around each and every compound. This is so that you do not touch or change the compounds. After that count the atoms. It may sound confusing, but all that means is look at the subscripts next to each atom to find the number of atoms in the equation. If there is no number after the element, then there is only 1. Then, write coefficients for each compound until both sides are equal. The biggest rule is you can NEVER EVER touch the subscripts, you can only add coefficients. Lastly, continue counting the atoms and adding coefficients until both the reactant and product side are equal.

 S&EP-Conducting Investigations:
We conducted an investigation to determine what causes a precipitate and what exactly a precipitate is. A precipitate is non dissolving solid that forms when two solutions or liquids combine and react chemically. After this investigation we confirmed that you know a precipitate was formed when you see a solid after two liquids were combined. The investigation confirmed a theory of mine that was a change in color and fizzing indicates a chemical reaction occurred. In addition to that, I confirmed that taking accurate notes on your observations makes a big difference on your understanding. Since I took good notes on the investigation, I could really understand what a precipitate was.

 XCC- Cause & Effect:
A chemical reaction is a cause and effect relationship. Something causes a chemical reaction, such as mixing  two compounds together and you get a new rearrangement as a result. Many people don't know this, in fact I recently learned it, but there are different types of chemical reactions. For example, one chemical reaction is synthesis. A synthesis reaction is when two elements combine to make a compound. This would look like A + B ----> AB. Another type of chemical reaction would be a decomposition reaction. This is when a compound breaks apart into two elements. This would look like AB ----> A + B. Single displacement is another type of chemical reaction. In this chemical reaction is when a more active element takes the place of another element in a compound and sets the less active one free. This would look like AB + X ----> AX + B. Lastly, there is double displacement. A double displacement is when anions and cations of two different molecules switch forming new compounds. This is sometimes called ionic. An example of this would be, AB + XY ----> BY + A. Chemical reactions are a good example of cause and effect relationships.

 Multiplier:
This week I was a wanderer because whenever I figured out the balanced equation I would share the information with my team.

Comments

Post a Comment

Popular posts from this blog

Amedeo Avogadro - 5/27/18

Image
Summary : Amedeo Avogadro was an Italian scientist who created what is now known as Avogadro's law. Known as a founder of the atomic-molecular theory, he was the first scientist to realize that elements could exist in the form of molecules rather than as individual atoms. His biggest contribution to science, Avogadro’s law, states that equal volumes of gasses under the same conditions of pressure and temperature will contain an equal number of molecules. Amedeo Avogadro was born on August 9th 1776 to Filippo Avogadro and Anna Maria Vercellone. Coming from a family of lawyers, Advogadro was guided to a legal career, and became a bachelor of jurisprudence in 1792. Despite a successful legal career; Avogadro has started private studies of mathematics and physics, which then he pursued full time. SP8 - Communicating Information : This week, I communicated information in the form of a wanted poster about a certain scientist. I decided to create a wanted poster about Amedeo
Read more

Roller Coaster Project Blog - 2/18/18

Summary : A roller coaster ride is a thrilling experience which involves a lot of physics. Part of the physics of a roller coaster is the physics of work and energy. The ride often begins as a chain and motor which exerts a force on the train of cars to lift the train to the top of a vary tall hill. Once the cars are lifted to the top of the hill, gravity takes over and the remainder of the ride is an experience in energy transformation. At the top of the hill, the cars possess a large amount of potential energy. Potential energy is dependent upon the mass of the object and the height of the object. As the cars descend the first drop they lose much of this potential energy in accord with their loss of height. The cars subsequently gain kinetic energy. Kinetic energy is dependent upon the mass of the object and the speed of the object. Therefore, their original potential energy is transformed into kinetic energy. Backward-Looking:  How much did you know about the subject before we
Read more

Wave Communication - 3/25/18

Image
Summary : There are two types of signals, analog and digital. An analog signal changes in frequency and amplitude all the time in a way that matches the changes in the voice or music being transmitted. A digital signal has just two values, which we represent as 0 and 1. An analog signal varies in frequency and amplitude. A digital signal has two values, 0 and 1 (or ‘on’ and ‘off’). The signal is converted into a code using only the values 0 and 1. The signal becomes a stream of 0 and 1 values. These pulses are added to the electromagnetic wave and transmitted. The signal is received and then decoded to recover the original signal. Both analogue and digital signals can pick up unwanted signals that distort the original signal. Digital signals can be cleaned up in a process known as regeneration because each pulse must be a 0 or a 1, so other values can be removed. Analogue signals can be amplified, but the noise is amplified too. This is why digital signals give a
Read more