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You Will Need:1. 2nd page of Counting Atoms +
Density Review - Bookshelf2. STAR CARDS #31-60 – Due at
the beginnig of the period on Friday
3. Log #3 – Update with points
Remember you have new SEATS!!!!!
You Will Need:1. STAR CARDS #31-60 – Due at
the beginnig of the period on Friday
2. Quiz on Cards 31-60 only on Friday – Final Quiz will be cumulative
3. Log #3 – Update with points
1. What type of substances have different characteristics than the components that make them up?
2. All elements are made up of what basic particle?
3. The smallest particle of a compound is?4. Atoms can only be separated into their
subatomic particles only by ?5. When you have two or more different
atoms bonded together, we call this a ______________.
6. Elements, Compounds and Mixtures…which are PURE? Why?
7. What is the maximum # of electrons the 2nd shell in the Bohr model hold?
8. Two or more substances physically blended make up a(n) ____________.
9. Why are mixtures “NOT PURE”.10. What ist he difference between
heterogeneous and homogeneous?11.Elements, Compounds and Mixtures…
which have a SET RATIO?12.A taco is considered a heterogeneous
mixture….Why?
13.Give an example of a homogeneous mixture.
14. How can you identify the solvet in a solution?
15.
Mixture of Elements
16.
16.
Mixture of Elements and Compound
17.
17.
Element
18. A substance composed of particles evenly distributed to look like one substance is homogeneous. This substance is also known as a ___________.
19. In 100 grams of water at 70 degrees Celsius, NaCl will dissolve 30 grams. If I pour in 40 grams will the solution be unsaturated, saturated or supersatureated?
20.In a solution of Kool-Aide and water what is the solute? Why?
21. List two forces/factors will change the saturation level of substances?
22. Element, Compound, Mixture – which can be mae up of atoms and molecules?
As you look over these compounds you may observe that many of them contain similar _________ of elements. Since we are a ______________ based environment, carbon is found in all living organisms. The elements in the Human Body can be broken down to include the main elements of Hydrogen, Oxygen, Nitrogen, Carbon and representatives from about 20 other elements.
atomscarbon
The _________ main elements that make up most living organisms are Carbon, ________________, Sulfur, __________________, Oxygen and _____________.
Phosphorus
SIX
HydrogenNitrogen
Practice and Review
Mass Unit Label = ___________
Volume Unit Label = _______,
________, ________
Density Unit Label = __________,
__________, __________
Gram
cm3
mL cc
g/cm3
g/mL g/cc
Density Formulas
1)There are 3 versions of the Density formula:
D=m/v v= m/D
m= v x D
1. Counting Atoms – 2 pages 4 sides – Due tomorrow at the beginning of class
2. STAR Cards 31-60 – Due on Friday at the beginning of class.