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Micro" Tab Part B - Watch the video with the pHET demonstration, read the information below and review U4L5 pg. 2 : "What is Conductivity?" "Solutions are all around us. While ionic solutions of different strengths are used as conductors, covalent solutions, which contain covalent molecules, and covalent compounds are used as insulators. Electricity is energy that comes from the movement of charged particles. In this diagram, the electrons in the metal wire move from the positive end of the battery to the negative end. Similarly, in a solution containing ionic compounds, the charged ions move when they're part of a circuit." Read Unit 4 Lesson 5 page 2, paragraphs 3 and 4 to continue learning about this topic and answer the following questions, after reviewing the recording and reading the above passage from the lesson: Question 2 Based on part A (above) and reviewing the U4L5 lesson, you can conclude that (click all that apply)(2 points) Responses a sugar molecule is made up on non metals and salt is made up on a metal and non metal a sugar molecule is made up on non metals and salt is made up on a metal and non metal salt is a covalent compound and sugar is a covalent compound salt is a covalent compound and sugar is a covalent compound sugar is a covalent compound, salt is an ionic compound sugar is a covalent compound, salt is an ionic compound sugar is a conductor of electricity and salt is a conductor of electricity

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Based on the information provided in your question, here are the conclusions you can make regarding sugar (which is typically a covalent compound) and salt (which is an ionic compound):

  1. A sugar molecule is made up of nonmetals and salt is made up of a metal and a nonmetal: This statement is true. Sugar (such as glucose) is composed of nonmetals (carbon, hydrogen, and oxygen), while salt (sodium chloride, for example) consists of sodium (a metal) and chloride (a nonmetal).

  2. Sugar is a covalent compound, salt is an ionic compound: This statement is true. Sugar is indeed a covalent compound because it is formed from covalent bonds, while salt is an ionic compound as it is formed from ionic bonds between a metal and a nonmetal.

  3. Sugar is a conductor of electricity and salt is a conductor of electricity: This statement is partially true. Salt (when dissolved in water) is a good conductor of electricity because it dissociates into ions. Sugar, on the other hand, does not dissociate into ions when dissolved in water and therefore does not conduct electricity well.

Given these evaluations, the correct selections would be:

  • A sugar molecule is made up of nonmetals and salt is made up of a metal and nonmetal.
  • Sugar is a covalent compound, salt is an ionic compound.

The selections "salt is a covalent compound and sugar is a covalent compound" and "sugar is a conductor of electricity and salt is a conductor of electricity" would be incorrect based on the chemical nature of these substances.