Web Analytics

Questions › Chemistry

Chemistry Asked by a SnapAndSolve user · about 8 hours ago

Part A: Directions: Fill in the blanks: Chemical or Physical Changes Crushing Rocks ______________...

Part A: Directions: Fill in the blanks: Chemical or Physical Changes
Crushing Rocks ______________
Condensation ______________
Baking a Cake ______________
Water freezes to produce ice, this means a ______________ change has taken place.
When a piece of magnesium ribbon is placed into beaker containing hydrochloric acid bubbling is observed, this means a ______________ change has taken place.
Part B
Can you recognize the chemical and physical changes that happen all around us? If you change the way something looks, but haven't made a new substance, a physical change (P) has occurred. If the substance has been changes into another substance, a chemical change (C) has occurred.
1. An ice cube is placed in the sun. Later there is a puddle of water. Later still the puddle is gone. ______________
2. Two chemical are mixed together and a gas is produced. ______________
3. A bicycle changes color as it rusts. ______________
4. A solid is crushed to a powder. ______________
5. Two substances are mixed and light is produced. ______________
6. Food color is dropped into water to give it color. ______________
7. Chewing food to break it down into smaller particles. ______________
8. In a fireworks show, the fireworks explode giving off heat and light. ______________
9. A piece of ice melts and reacts with sodium. ______________
10. Mixing salt and pepper. ______________
11. A marshmallow is toasted over a campfire. ______________

Answer

Part A:

  1. Crushing Rocks: Physical
  2. Condensation: Physical
  3. Baking a Cake: Chemical
  4. Water freezes to produce ice, this means a Physical change has taken place.
  5. When a piece of magnesium ribbon is placed into beaker containing hydrochloric acid bubbling is observed, this means a Chemical change has taken place.

Part B:

  1. Physical
  2. Chemical
  3. Chemical
  4. Physical
  5. Chemical
  6. Physical
  7. Physical
  8. Chemical
  9. Chemical
  10. Physical
  11. Chemical

Have a similar question?

Snap a photo of your homework and get a step-by-step answer in seconds. You can ask follow-up questions until it makes sense.

Solve my question free Chemistry help Find a chemistry tutor

More chemistry questions