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by BlastRoom
Practice naming phase changes and identifying whether they absorb or release energy.
#chemistry
24 questions
One question set, multiple game modes. Tap any game to see it in action. Not sure which to pick?
Answer to place stones and capture territory.
Outrun the snow together.
Earn blasts, then hunt the other team.
Answer to earn energy, then climb.
The class blasts through walls together.
Bid on mystery lots. Most money wins.
Sell tours. Nice, standard, or a total scam.
Answer, restock, and serve the rush.
More correct answers pulls the rope your way.
Answer, then shoot down the alien wave.
Answer, then tap to leap the frozen ridge.
A sample of solid gallium warms in a student's hand and becomes liquid gallium. Which phase change is occurring?
Liquid candle wax cools and turns back into solid wax. What is the name of this phase change?
A puddle of liquid water slowly becomes water vapor on a sunny day. Which phase change is this?
Water vapor in warm air changes into liquid droplets on a bathroom mirror. What phase change has occurred?
Solid iodine crystals produce purple iodine vapor without first becoming a liquid. Which phase change is occurring?
Frost forms when water vapor in air changes directly into solid ice on a cold windshield. What is this phase change called?
Molten aluminum in a mold becomes solid aluminum as it cools. Which phase change is taking place?
Boiling ethanol changes from liquid ethanol to ethanol gas. Which phase change names this process?
CO2 gas in a very cold container changes directly into solid CO2. Which phase change is described?
Solid ice on a sidewalk becomes liquid water as the temperature rises above 0 °C. Which phase change is happening?
When solid ice becomes liquid water, which energy statement fits the change?
Liquid water forming ice in a freezer has which energy flow?
During vaporization, liquid particles separate enough to become gas particles. What happens to energy?
When water vapor condenses into liquid water, which energy statement is correct?
Dry ice changes from solid CO2 directly to CO2 gas. Which energy direction fits this change?
Water vapor forming frost on grass is an example of deposition. What happens to energy during this change?
On a heating curve, a liquid is boiling while heat is still being added. What happens to the temperature while the liquid boils?
On a cooling curve, the temperature stays flat while a gas condenses into a liquid. Why does the temperature stop falling during this segment?
Snow seems to disappear from a very cold, dry sidewalk without forming liquid water first. Which choice identifies the process and energy direction?
Steam touches a cooler metal lid and turns into liquid droplets. Which choice correctly pairs the phase change with energy flow?
A tray of liquid water becomes ice cubes overnight in a freezer. Which description is correct?
Liquid rubbing alcohol left on skin quickly becomes alcohol vapor and makes the skin feel cool. Which choice fits?
Ice cream softens as solid water in it becomes liquid water. Which pairing correctly describes the change?
A thin layer of ice crystals forms on the inside wall of a freezer when water vapor touches it. Which pairing is correct?
Crack the passcode before the zombies get in.
Answer, then swat bugs for bonus points.
Race through questions at your own speed.
Same question on every screen. Fastest wins.
Pick a tile, answer, hit bonuses and steals.
Phase Diagrams
18 questions
