The freezing point of water is a ...

Talc can be crushed into a fine powder. This is a ...

Hunter is making a list of physical and chemical properties. Which choice should he not list as a chemical property?

You have two cups with clear liquids in each. You put an ice cube in each. One cube floats, one cube sinks. You decide one cup contains water and one contains rubbing alcohol. What type of property of matter did you use to identify the liquids?

You have a sample of an unknown substance. If you added MORE of the substance to that sample, which of the following would change?

Silver is a white metal and is an excellent conductor. The density of silver is 10.49 g/cm3. Silver does not react with water but it does react with nitric acid. Silver tarnishes when exposed to air or light. Which is a physical property of silver?

Which is NOT a physical property?

Which is NOT a chemical property?

When solid sodium metal is placed in water, energy is released and sparks fly as sodium hydroxide is formed. Which of these best describes this situation? The release of energy is a sign of a ___________ change.

The baking soda looked like it dissolved in the vinegar. Sarah and Connor watched as the balloon expanded and filled with a gas. Was this a physical or chemical reaction and why?

glass shattering in to pieces... bubblegum being stretched... a piece of metal expanding due to heat...These are all examples of

Maria and Miquel were enjoying the fireworks when they got into a chemistry argument. Maria insisted that the fireworks were the result of a chemical reaction. Miguel disagreed. What would you tell them to solve this argument?

Which is a physical change?

A change in _____ means that a chemical reaction has occurred.

A pot of water is being heated on a stove. Bubbles form and condensation appears on the lid of the pot. Is this a physical or chemical change?

A translucent, blue copper (II) sulfate solution is mixed with another solution and changes to a translucent lighter blue color. Is this a physical or chemical change?

Ammonium nitrate solid dissolves in water and feels very cold. Is this a physical or chemical change?

Red and blue paint are mixed together and the color purple appears. Is this a physical or chemical change?

When an athlete gets hurt they apply sometimes an instant cold pack to the injury. The instant cold pack works by mixing two chemicals that create a chemical reaction. What evidence is there that a chemical reaction is taking place in the cold pack?

A scoop of baking soda is added to a beaker containing vinegar. The baking soda disappears and bubbles are observed. This is an example of a _____________ change.

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