Chemistry Blog Thing

1) The question we were trying to answer was do average masses of different beans really equal a standard quantity? 2)What we did for our investigation was we got 50 beans of each type of bean and than we scaled them, finding out which one weigh less in which we use that one to get our relative mass for the beans. We did it like this way so we can see if they could equal the standard quantity of the beans. 3)Our claim was yes, because the bean count was equal to it's relative mass. Our evidence is the picture below, which shows the bean type, mass, relative mass, and bean count. Our reasoning comes in 3 parts,  for the first part was why we choose yes, because the bean count all fell around the '20' amount. Rather then random numbers. On the second part for what the relative mass means, is was the relative mass will be the bean w/the smallest mass which, will be the bean all are compared to(each type of bean) example: lint bean/ kidney bean. And the last part for how this

1)The tasks I have completed were online homework to finding how much valance electrons are need on a ionic/covalent pair with dots and naming elements. 2)I have learned with different prefixes and suffixes for different ionic/covalent pairs are needed for certain elements and transforming them to there word figure and number figure. 3)I plan on using my tools that where given to me and keep them at all times to finding these ionic/covalent pairs names and numbered elements to help me better instead of trying to remember it.

1)The question we  were trying to answer was the # of things around central atom affect the shape of a molecule. 2)What we did for our investigation was use a VSEPR (valence shell electron pair replusion) simulation. We did this to predict the shape of a molecule from the # of atoms and lone electron pairs around central atom. 3)Our claim was when more things were added, the central atom appeared smaller. Our evidence was this, (it's the picture of our molecules with their angles and if they had a sing,doubl,tripl and lone pair bond. My reasoning was that model allows us to use the e- dot structures of atoms to predict the 3D Geometry of simple molecules. It was determined by the # of things surrounding a central atom. Also for lone pairs, lone pairs didn't really change the shape but change the electron name of the molecule.

1)The question we were trying to answer if  reactivity is a periodic property . 2)What we did for our investigation is we got certain elements and put them in regular water to see the reaction. Since water is very simple, it made sense to put the elements in it to watch the results. 3)My claim was 'Yes, reactivity is a periodic property.' My evidence was what the element was, and what we matched what happend when it touched the water. (Highest Reactivity to Low) ----Potassium | It generated a pink flame and fizzed and moved around. ----Sodium | Fizzed and spinned around. ----Calcium | Bubbled and fizzed. ----Magnesium | Nothing when in water and turned pink when heated. ----Copper | Nothing even when heated My reasoning was 'Potassium was more reactive than Sodium, because Potassium caught on fire and Sodium did not. Then Calcium didn't moved around but fizzed like Sodium. Then Magnesium had nothing to do with the water by itself intill put in heat, and Copper

1)The tasks I have completed were finding if reactivity of an element shows a periodic property. 2)I have learned how to find a certain element from its groups, column, and families. 3)I plan on noting it better so I can find the valance and groups and such much faster. In a way I can remember better.

1) The tasks I have completed recently is doing electron configurations and orbital diagrams and learning about them. 2) I have learned that a easy way of finding the orbital diagram for a element is to look at it's row, block, and column. Getting it's final electrons and then filling in the rest before it. 3) I plan on making notes and keeping track of the 3 main rules (aufbau, pauli, hund) laws for electron configuration and what they are to get a better understanding.