Question

Physies 202 HW2 Short Response (due Tuesday Jan 22th in class) WehAssign Portion due online Monday Jan 21 11p.m. Name: Pretend I don't know any physies (or chemistry). Explain the following to me: 1. What does polar' mean? (2pts) 2. Why is water a polar molecule? You should draw a diagram as part of your explanation. (4pts) 3. Name at least three properties of water that are a consequence of its polarity. (3pts) 4. Why do foods that contain higher water content heat more easily in the microwave oven? (3pts) Your answer should be in the form of paragraphs, i.e. do not just list yor answer or use bullet points. However, do not feel obliged to write a lot. The critical point is that you convey the answers to the questions above clearly and concisely.

Answer 1

Polar means having two or more poles for ex . water molecule . It has one positively charged and one negatively charged side . The molecule is made up of two hydrogen atoms and one oxygen atom Water's polarity allows it to dissolve other polar substances very easily. Because of their polarity, water molecules are strongly attracted to one another, which gives water a high surface tension Insects that walk on water takes advantage of this surface tension . Due to polarity, water molecule attract dust particles on clothes during wasting. Microwave cause water molecules in food to vibrate, producing heat that cooks the food. That's why food that are high in water content can be cooked more quickly