8.5E - Chemical and Physical Changes

Front

Which of the following could indicate a chemical change? Options: a color change has occurred, bubbles appear, properties are different after a reaction

Back

All of the answers could indicate Chemical Change

Front

A copper penny turning greenish after a few years is an example of...

Back

Chemical Change

Front

A change in which NEW substances are formed.

Back

Chemical change

Front

Which of the following is a PHYSICAL change? Options: Getting a haircut, Rusty metal, sour milk, A compound

Back

Getting a haircut

Front

Which of the following is a sign that a chemical reaction has occurred? Options: change in shape, melting, formation of a gas, dissolving

Back

formation of a gas

Front

Is melting butter for popcorn a chemical or physical change?

Back

physical

Front

Is burning wood a chemical or physical change?

Back

chemical

Front

In which experiment are new substances being formed? Options: Experiment 1, Experiment 2, Experiment 3, Experiment 4

Back

Experiment 1

Front

A clear liquid from a flask is poured into another clear liquid in a beaker. What result would indicate a new substance was formed?

Back

A yellow solid forms and then settles to the bottom of the beaker.

Front

Which of the following is an example that includes evidence of a chemical reaction? Options: A sample of zinc is placed in water and it settles to the bottom, A solid block of ice is heated and it completely melts into a liquid. , Sugar that is burned gives off an odor and turns brown and then black., A tomato is placed into a blender and chopped up into smaller pieces.

Back

Sugar that is burned gives off an odor and turns brown and then black.