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1. Why does solid ice float on liquid water? 2. When a lake freezes, how does the density of water prevent all of the living organisms in the lake from freezing as well? 3. Explain why the polymer ball is at the bottom of the vegetable oil. 4. Explain why the ice floats on the water.
When a neutral molecule has a positive area at one end and a negative area at the other, it is a polar molecule. Water molecules attract one another based on the attraction between the positive end of one water molecule and the negative end of another.
Explain why water is an excellent solvent; Provide examples of water’s cohesive and adhesive properties; Discuss the role of acids, bases, and buffers in homeostasis
eactions of life occur in aqueous solution. Water molecules are polar and are capable of forming hydrogen. onds with other polar or charged molecules. As a. result, water has the following properties:H20 molecules are cohesiv. they form hydrogen bonds with each other.H2O molecules are adhesive; t.
Because the water molecule has an H — O — H bond angle of 105°, the molecule as a whole is polar. 4. The diagram below depicts a water molecule. Complete the labels showing the locations of the hydrogen atoms, the oxygen atom, and the regions of positive and negative charge.
21 paź 2020 · The reason water is a polar solvent is because it attracts either a positive or negative electrical charge of a solute. The oxygen atom’s partial negative charge attracts hydrogen atoms from other water molecules and positive regions from other molecules.
17 sie 2020 · Polar molecules readily dissolve in water because the positive part of the polar molecule is attracted to the oxygen atom, while the negative part is attracted to the hydrogen atom. In addition to polarity, water is a great solvent because it is amphoteric.
