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When isopropyl alcohol was spilled over the counter top and quickly disappeared, what phase changed occurred?
Evaporation
The phase change that occurs when a gas is cooled and changes into a solid is known as…
Deposition
Is mixing Na and Cl to get NaC(table salt) and physical or chemical change?
Chemical
Is heating up gold bars down to a liquid a physical or chemical change?
Physcial
What are examples of physical change?
Changes in state, shape, size, or texture
When you place a pot of water on the stove and heat the water up, you notice that bubbles form throughout. What phase change is the water undergoing?
Boiling
The change in state from gas to a liquid is called____
Condensation
What is a physical change?
Alters form or appearance WITHOUT changing chemical composition
Matter is anything that has mass and takes up space. True or False
True
What is an example of a Homogeneous mixture?
A cup of coffee
What is an example of a mixture?
Sea Water
What are some examples of a chemical change?
Rusting, combustion, baking
What phase change does dry ice undergo when it transforms from a solid to a gas, skipping the liquid phase entirely?
Sublimation
The beads of sweat on the outside of your cup come from the water vapor in the air. What phase change did the water vapor have to undergo to become the dew drops on the outside of your cup?
Condensation
What is an example of a Heterogeneous mixture/
Is cooking scrambled eggs a physical or chemical change?
Chemical
A substance which is made up of two or more elements chemically combined is known as….
A compound
What is a chemical change?
Physical
What does a mixture consist of? Not chemically combined together.
2 or more elements or compounds