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What is it?
Balancing act
look,listen, and learn
Guess who?
How do you do that?
100
Aluminum Phosphate has a density of 2.566 g/cm3
What is a physical property of aluminum phosphate?
100
_____ Hg + _____ O2 --> _____ HgO
What is 2 Hg + O2 --> 2 HgO
100
alloy
What is a solid solution of metals?
100
Blood
What is a mixture?
100
How to separate salt water?
What is boiling or evaporating
200
The metal burner on the stove turns red when heating the food.
What is a physical change?
200
_____ Ag2O --> _____ Ag + _____ O2
What is 2 Ag2O --> 4 Ag + O2
200
(aq)
What is symbol meaning "dissolved in water"
200
An iron nail
What is an element?
200
How to separate alcohol and water?
What is distillation, alcohol boils off first and is collected in separate container as it condenses
300
Hydrogen peroxide decomposes into water and oxygen
What is a chemical change?
300
_____ C4H8 + _____ O2 --> _____ CO2 + H2O
What is 1 C4H8 + 6 O2 --> 4 CO2 + 4 H2O
300
5 indications of a chemical change
What is change in smell, energy is released or destroyed, precipitate is formed, color change, and not easily to reverse?
300
Potassium chloride
What is a compound?
300
photosynthesis (be specific)
What is the process plants make food by using carbon dioxide, water, and energy from the sun?
400
Iron and sulfur are heated and form a non-magnetic shiny grey substance.
What is a chemical change?
400
_____ Al + _____ HCl --> _____ AlCl3 + ___ H2
What is 2 Al + 6HCl --> 2 AlCl3 + 3 H2
400
An indication that baking a cake is a chemical change. (Looking for specific answer)
What is it rises?
400
Glucose
What is a compound?
400
two ways to separate a solid/liquid mixture
What is filtration and decantation?
500
Dry Ice (solid carbon dioxide -- CO2) is sublimed at room temperature.
What is a physical change?
500
_____ C3H8 + _____ O2 --> _____ CO2 + H2O
What is 1 C3H8 + 5 O2 --> 3 CO2 + H2O
500
2 indications that sour milk has undergone a chemical change
What is the smell has change and a precipitate is formed.
500
Salt water
What is a mixture?
500
the reactants for cellular respiration
What are oxygen and glucose?