A) Which statement best describes the usefulness of a model to investigate

Question

molecules at the microscopic level? (1 point)
All models are useful.
A model’s usefulness depends on whether direct observations of phenomena
can be made.
A model’s usefulness depends on the accuracy of its predictions.
Models are not useful at all.
A) Which correctly orders the strength of the forces between particles of
differents physical states? (1 point)
liquids>solids>gases
solids>liquids>gases
gases>liquids>solids
liquids>gases>solids
12/16/24, 2:20 AM Vega Viewer SPA

Question 3
A) Which best describes the melting point difference between salt and sugar?
(1 point)
The covalent bonds in salt result in a lower melting point than the ionic bonds
in sugar.
The covalent bonds in salt result in a higher melting point than the ionic bonds
in sugar.
The ionic bonds in salt result in a lower melting point than the covalent bonds
in sugar.
The ionic bonds in salt result in a higher melting point than the covalent bonds
in sugar.
12/16/24, 2:20 AM Vega Viewer SPA

Question 4
A) Which statement best describes the development of theories that connected
microscopic and macroscopic phenomena? (1 point)
It took several hundred years for scientists to develop current theories, and
they are still being revised to this day.
It took several hundred years for scientists to develop current theories, and
they are essentially concrete.
It took only a few decades for scientists to develop current theories, and they
are essentially concrete.
It took only a few decades for scientists to develop current theories, and they
are still being revised to this day.
12/16/24, 2:20 AM Vega Viewer SPA

Question 5
A) Which best describes how the results of experiments investigating the
relationship between microscopic and macroscopic phenomena affect a model
of molecular theory? (1 point)
Consistent results support the validity of the model, while inconsistent results
require throwing out the model entirely.
Consistent results support the validity of the model, while inconsistent results
indicate the need to modify the model.
Consistent results require throwing out the model entirely, while inconsistent
results support the validity of the model.
Consistent results indicate the need to modify the model, while inconsistent
results support the validity of the model.

Answer 1

Here are the answers to your questions based on the concepts of molecular theory and states of matter:

Question 1: A) Which statement best describes the usefulness of a model to investigate molecules at the microscopic level?

• Answer: A model’s usefulness depends on the accuracy of its predictions.

Question 2: A) Which correctly orders the strength of the forces between particles of different physical states?

• Answer: solids > liquids > gases

Question 3: A) Which best describes the melting point difference between salt and sugar?

• Answer: The ionic bonds in salt result in a higher melting point than the covalent bonds in sugar.

Question 4: A) Which statement best describes the development of theories that connected microscopic and macroscopic phenomena?

• Answer: It took several hundred years for scientists to develop current theories, and they are still being revised to this day.

Question 5: A) Which best describes how the results of experiments investigating the relationship between microscopic and macroscopic phenomena affect a model of molecular theory?

• Answer: Consistent results support the validity of the model, while inconsistent results indicate the need to modify the model.

Let me know if you need any further explanations or assistance!