You are a well-known chemist in the town. Your close friends organize a science fair in their school, and they invited you to share your expertise with
their young science explorer. You've decided to design using multimedia, demonstrations,
or models, a representation or simulation of any two of the following: a. atomic structure;
b. gas behavior; c. mass relationships in; and d. reactions, for them to grasp what you are
going to teach. Your output must show originality, content, polish, time management,
and selection of materials. It will evaluate by your colleague and a representative of the
Department of Science and Technology.

the best answer is d because the strong cohesion is caused by the ability of water molecules to undergo hydrogen bonding.

a is incorrect because when water solidifies, it becomes   ice, which expands and occupies a bigger volume for the same mass of water in its liquid state.

b is incorrect because water has high surface tension. besides bonding to itself it hydrogen bonds to other molecules at the top decreasing possibility for breaking of attractive forces.

c is incorrect because the water molecule has oxygen which is highly electronegative and so pulls the electron pair towards itself creating a dipole moment, making the molecule polar.

e is incorrect because water has strong adhesion, ability to stick to other molecules such as glass because of this molecules having stronger hydrogen bonding than water.

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the atomic number of carbon is six, which means that a carbon atom has six protons. carbon has three naturally occurring isotopes: carbon-12, carbon-13, and carbon-14. which of these statements are true about carbon and its isotopes? select all that appl

it’s previous models   because when i picked that son of a gun’s answer it was wrong look for previous models because they might make it a different letter  

d

explanation: