Chemistry 1sr trimester properties

1.- Thanks to their low reactivity, the materials we call plastics are used to manufacture.....

• electrical insulators

• food packaging

• tools

2.-The materials used to make pots and pans must be .

• corrosive

• little dense

• non-flammable

3.-The numerical value of the physical and chemical properties allows identifying materials and determining the composition of mixtures.

• True

• False

4.- Describe what property it refers to.

• Fusion point

• Bioling point

• Solubility

5.- Describe what property it refers to

• Temperature

• Density

• refractive index

6.- Extensive physical properties allow us to identify materials.

• True

• False

7.-
To determine the chemical properties of materials it is not necessary to transform them. If a material interacts with fire and its composition is modified, it was not due to a chemical property of the material.

• True

• False

8.- Mass is an extensive physical property

• True

• False

9.- Hardness is an extensive property.

• True

• False

10.- What separation method is commonly used to separate solids from liquids in a heterogeneous mixture?

• Centrifugation

• Distilation

• Filtration