1) Which statement best describes the usefulness of a model for studying molecules at the microscopic level? (1 mark) The usefulness of a model depends on the possibility of making direct observations of the phenomena.
All models are useful.
The usefulness of a model depends on the accuracy of its predictions.
Templates are not helpful at all.
2) Which scientist contributed to molecular theory by explaining that gas pressure is caused by the impact of gas molecules on surfaces? (1 mark)
Daniel Bernoulli
Amedee Avogadro
John Dalton
Robert Boyle
3) What term did Avogadro coin? (1 mark)
molecule
microscope
kinetic energy
atom
4) Which statement best describes the development of theories linking microscopic and macroscopic phenomena? (1 mark)
It took scientists several hundred years to develop the current theories, and they are essentially concrete.
It only took scientists a few decades to develop the current theories, and they are still being revised to this day.
It took only a few decades for scientists to develop the current theories, and they are essentially concrete.
It took scientists several hundred years to develop the current theories, and they are still being revised to this day.
5) How can the results of experiments studying the relationship between microscopic and macroscopic phenomena affect a model of molecular theory? (1 mark)
Consistent results confirm the validity of the model, while inconsistent results require discarding the model completely.
Consistent results require completely discarding the model, while inconsistent results support the validity of the model.
Consistent results support the validity of the model, while inconsistent results indicate the need to modify the model.
Consistent results indicate the need to modify the model, while inconsistent results confirm the validity of the model. 1- The usefulness of a model depends on the accuracy of its predictions
2-Daniel B
3 molecules
4-It took many hundreds of years…and they are still being revised to this day
5-consistent results support the validity of the model while inconsistent results the need to modify the model 1) The usefulness of a model depends on the accuracy of its predictions.
2) Daniel Bernoulli
3) molecule
4) It took scientists several hundred years to develop the current theories, and they are still being revised to this day.
5) Consistent results confirm the validity of the model, while inconsistent results indicate the need to modify the model.