Test
Physical and Chemical Changes
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Preguntas del test (11)
1Why do chemical changes occur?
- AWhen the atoms and molecules of substances change or react with one another
- BWhen atoms and molecules react chemically against a compound
- AWhen the atoms and molecules of substances change or react with one another
2Give three examples of chemical changes
- AFreezing, rusting, melting
- BPhotosynthesis, rusting, baking
3True or False: Burning a sugar cube is a chemical change
- AVerdadero
- BFalso
4True or False: Chemical Changes happen on a much smaller scale
- AVerdadero
- BFalso
5You can cause physical changes with forces like...?
- ATemperature, Force, Motion
- BForce, Motion, Gravity
- CTemperature, Gravity, Motion
6True or False: During a physical change new materials are formed
- AVerdadero
- BFalso
7Physical Changes involve....
- AChanges of state, color, appearance, shape, texture, size and form
- BChanges of temperature, force and gravity
8During a chemical change....
- AChemical bonds are formed between the materials
- BNo chemical bonds are formed between the materials
9True or False: Chemical Changes are hard to reverse
- AVerdadero
- BFalso
10Is energy released during physical changes?
- ANo
- BYes
- COnly during changes of state
11How are compounds formed during chemical reactions?
- AWhen chemical reactions occur, creating the compound and it's components
- BWhen chemical bonds are formed between the elements
Información
- Descripción
- Test sobre Physical and Chemical Changes, creado por za4321 el 15/11/2014.
- Autor
- za4321
- Idioma
- English
- Visitas
- 257
- Etiquetas
- Valoración
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