A Christmas carol

So exited going tomorrow night 

Hope everyone has a great christmas 

And a happy new year 🎄🎉

Merry Christmas

Types of Reactions

 Synthesis; A+B=AB
element and an Element combine to form another substances
Element + Element=Compound

 Decomposition; AB=A+B
on substance breaks down into two or more simpler substances.
Compound=Element+Element

 Single-Displacement; A+BY=AY+B
Occurs when one element replaces another element in a compound
Element+Compound=Compound

 Double-Displacement= AY+BX=BX+BY
Two diffrent atoms in two diffrent compounds exchange places
Compound+Compound=Compound

 Combustion= The products of combustion are always water and carbon dioxide
Hydrocarbon+Oxygen= Water+Carbon Dioxide

Single-Displacement reacts to Zinc it creats bubbles and loud bombing sounds

Periodic Table

In class we learned about the periodic table and this is what I leaned, 

Organization of table 

• Yellow is most reactive metals 
• react in  water to release H2 gas

•  valence electrons in the outermost energy level groups. 
• elements in any group of the periodic table have similar physical and chemical properties. 
• the group provides information about the number of valence electrons. 
• Halogens are the right side of the chart are non metals they easily combine with other metals.
• Alkinal Metals are on the left side and are metals they react in water and can not be mixed   

 Parts of table

The rows on a periodic table are called periods going horizontal 

the vertical column are named  families.

Trends 

• Radius gets larger . left to right 

• The peaks of the chart are the most reactive metals 

Flame Test Lab Questions

Brianna Heaphy 

Pentucket High School

October 25,2013 

1. Errors that can appear well using the flame test. Scientist could mistakenly read the name of the chemical wrong and say the wrong colors. 

2. You need more than one property to find the answer to a substance.

3. the colors in the flames are produced from the type of substance if the substance is a high the color will be blue, red etc. if the substance slow then the color will be yellow, orange.

4. Mn, Sr, Cn, Co, Mg, Ba, Li

5. The element has to be heated by the flame before it can show color because the heat gives the element power and makes the electrons exited making them jumpy which creates light.

Law Of conservation of Mass

 Law Of Conservation Of Mass
Brianna Pentucket High School
  October 18, 2013

Where do elements come from

Brianna
Pentucket High School
October 7, 2013



Where do elements come from?

Where did all the elements of the universe come from?
* Hydrogen, oxygen, and Helium
* They come from stars that explode. Combinations of the stars gasses created elements.

How did the universe form?

* Around all young suns, young stars, all combine, swirl around, the energy of the stars stirs them around, they first form particles, then that forms snowflakes, that formed little dust pieces which then forms rocks, which forms asteroids then eventually the asteroids turned into planets and moons.

How do I know/understand matter and what I know/understand about matter?

* Because earth is made from lava rock, magma and lots of elements such as hydrogen, oxygen, and H2O. Matter occupies space it’s a combination of mass and an object that takes up space.