Anthony's Chem blog

-recently we have been expanding on our knowledge on moles and molecular shapes - recently we have learned how get molecular shapes and how to better find and distinguish the mole - i plam to study my notes more and quiz myself.

- recently we have completed a hydrate lab - i have learned how to separate water from objects completely to find its mass - i plan to study my notes more often and quiz myself to better understand

1. Recently we have done multiple labs to help us better understand the mole 2.recently we have learned how to calculate and find the mole and grams,atoms etc. 3. I plan to do more practice finding a mole and read over my notes better to get better scores when we do tests

1. GQ- Do average mass of different beans really equal a standard quantity? 2. During our investigation we gathered several different beans and we counted them out , weighed them, calculated the average mass, then we calculated the relative mass lastly. 3. in our investigation we decided our answer was yes because all the beans masses equaled a standard quantity because the count of beans were around the same number (20). To calculate relative mass you have to divide all the beans over the smallest beans  in this case it was all beans over lentils even lentils/ lentils This models the mole because although we had around the same count of beans in the end our masses were all different from each others. a mole is essentially different molar masses but containing the same number of particles in this case same amount of beans but different masses.

Q- How does the number of things around a central atom affect the shape of a molecule?             A- We wanted to figure out if different bonds affect the shape of a molecule and we discovered that yes indeed they do. During our investigation we messed around with a program which allowed us to play around with different bonds and see the differences they make in shape and the different angles also created. Claim- yes, the number of things around a central atom affect the shape of a molecule. Evidence- i don't know how to put them into this typing but you saw our drawings and data in class. reasoning- VSPER is our main point of reasoning because it is a theory used to show the geometry of molecules from the number of electrons around the central atom. .

Question- what are the identities of the unknown solutions? Why is a flame test able to be used? Evidence- Metal ion Calcium-bright orange  Barium-green/yellow Copper- green Lithium-red Potassium-orange Sodium-yellow/orange Strontium-red/orange Unknown #1- light orange Unknown #2-red/Orange Unknown #3/green/yellow Unknown #4-bright orange  We used our evidence of the unknown metals and compared that to the unknown metals and determined that:   The unknowns were the same shade as the knowns and we incorporated that into finding the answer , although there was some colors we could tell apart based on the shades themselves. The flame test is able to differentiate the amount of electrons which is important because when energy is absorbed by the electron it gets excited and then drops which causes the color of light to appear 

1. Recently we have been talking about the development of the periodic table and how it works, the different families, groups etc, we are learning how to better understand and read the periodic table 2. Recently I have learned that the periodic table is divided up into 4 blocks s,d,p, f  and what all of these blocks represent 3. I will continue to study my notes and create flash cards to help better understand what we are working on