First Ideas on Physics and Chemistry

The combination of different compounds to produce new and different compounds releasing energy is a...

• Homogeneous mixture

• Heterogeneous mixture

• Chemical reaction

The combination of different compounds that are indistinguisible to each other when they are combined to others is a...

• Homogeneous mixture

• Heterogeneous mixture

• Chemical reaction

The combination of different compounds that can be differed to each other when they are combined to others is a...

• Homogeneous mixture

• Heterogeneous mixture

• Chemical reaction

If you have water and oil in a glass and you try to separate them, which technique would you use?

• Filtration

• Decantation

• Evaporation

• Magnetism

What is going on?

• The more the temperature, the more the pressure.

• The less the temperature, the more the pressure.

• The more the temperature, the less the pressure.

The division between mass and volume of an object is known as

• Density

• VIscosity

• Concentration

The division between the mass of solids and volume of liquids in a disolution, is known as...

• Density

• VIscosity

• Concentration

Which ones are parts of the work of a scientist?

• Experimentation

• Observing something in nature

• Thinking of a hypothesis

• Not checking the previous ideas

There can be materials and goods with no chemical relationship at all. Totally chemistry -free products.

• True

• False

Which one is a unit of velocity?

• m/s^2

• Newtons

• Km/h

• Joules