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

Scientific Observations

Brianna
Pentucket High School
September 25,2013

 

SCIENTIFIC OBSERVATIONS

SKILLS LAB 1

 

 

OBSERVATIONS                                                                    

• Solid
• Green/blue color
• Fragile  
• Thick Bottle
• Dangourous
• thin
• looks like crystals
• small
• soft
• clumpy
• turned green
• the chemical sunk
• some of it was floating
• turned a light blue when it was stired
• turned black when tin foil was added to it
• fizzled
• bubbles rose
• tin foil turned red in cooper chloride
• peices of thetin foil came off
• tin foil fuzzzed
• breackable
• flexible
• cooper chloride turned gray

Water temp before cooper chloride was added: 20 degrees

 

 

The cooper chloride stayed over nite and went back to a blue color beacause the tin foil desinagrated.

 

The tin foil disappered and now on the bottom in the beacker it looks like sand (tin foil) copper seperated from the chlorine. The bootom is a brown, blue, and  also teh color purpleis on the bottom.

 

The chlorine then went through the paper and the sand did not it stuck to the paper. And it turned purple and hardened to the paper.

 

When we put the other chemical in with the sand and chlorine after seperating them.The cooper cloride turned white then blue then green. The sand seemed to fizzle to the top in little air bubbles. Like when you put eater egg colorings into water and tehy fizzele is disinagrat.