Elements CompoundsSolutionsSuspensionsColloids
An element is a ___________ that can’t be separated into smaller substances.
What is a pure substance?
The 3 different categories of elements are ________, _________, __________.
What is metals, non-metals, and metalloids?
Name 5 elements and their symbols.
Answers may vary…
What elements make up table salt?
What is Na-sodium, Cl-chlorine?
Name 2 characteristics of a metal, non-metal, and metalloid.
What is… metals: shiny, good conductors, located on left of the periodic table non-metals: dull, not good conductors, located on the right of the periodic table metalloids: properties of both metals and non- metals, located in the middle of the table.
A compound is a pure substance composed of two or more _________.
What is elements?
True or false. Elements join in a specific ratio to form compounds.
What is TRUE? (Give an example)
Why can two dangerous elements form together to make something we can eat or use, such as NaCl?
What is… When elements combine to form a compound the compound’s properties are different from the properties of the individual elements.
Compounds can be broken down into simpler substances only by __________.
What is chemical changes?
What are some compounds that are often found in industry?
What is aluminum, and ammonia?
Please put the terms solution, solute, and solvent into a sentence.
What is… You put the solute in the solvent to form a solution.
What are 3 common ways to separate a mixture?
What is distillation, magnet, and centrifuge? Which one is used to separate blood?
Solutions can otherwise be known as _________ (type of mixture).
What is a homogeneous mixture?
Describe how you would separate salt, iron, and sand.
What is… refer to mixture lab done in class. Magnet-iron Filter-sand Boil water-salt
What is the concentration of a solution that has 45g of solute, and 159 mL of solvent.
What is 0.28 g/mL
An example of a suspension is salt water. True or false?
What is false? Explain why…
Suspensions are mixtures that contain particles large enough to _________. (Give 2 examples)
What is settle out? Examples- sand and water dressing
A heterogeneous mixture is the same as a suspension. True or false?
What is false? Why not?
3-2-1 questions: Give 3 characteristics of suspensions, Give 2 ways they differ from solutions, 1 way to separate a suspension.
What is… Characteristics-settle out, particles large, scatter light Differ-vary Separate-through filter
Solutions--What is the difference between a saturated, and unsaturated solution?
Saturated-more solute than solvent Unsaturated- more solvent than solute
What are 2 examples of colloids?
What is milk, paint, syrup, jello?
What is a colloid?
What is- they have properties of both a solution, and a suspension.
Mixtures– What is the difference between a mixture and a compound?
What is a mixture can be separated physically, a compound can not. Mixtures don’t need a ratio, compounds ALWAYS have a ratio.
Solubility– A solution that contains a large amount of solute is know as__________.
What is concentrated?
The characteristics of a colloid are __________.
What is the particles don’t settle out, you can’t see the individual particles, and colloids scatter light.