The table below shows two types of electromagnetic waves and three random applications of electromagnetic waves. Type of Wave Applications of Wave
X-rays 1. Show the heat released by astronomical objects
Ultraviolet rays 2. Study stars having high temperature
3. Detect collection of gas, dust, and plasma

Which of these best matches the waves with their applications?
X-rays—2 and ultraviolet rays—3
X-rays—3 and ultraviolet rays—2
X-rays—1 and ultraviolet rays—2
X-rays—2 and ultraviolet rays—1

In any energy conversion, some of the energy is lost to the environment as question 5 options: electrical energy potential energy sound energy thermal energy

Put these processes of the water cycle in the correct order, starting at the point where the water is in the lake: 1. water evaporates into the atmosphere 2. rain, snow, or other precipitation falls 3. water collects into larger bodies of water 4. water vapor condenses into liquid water

1. suppose a reaction mixture, when diluted with water, afforded 300 ml of an aqueous solution of 30 g of the reaction product malononitrile [ch2(cn)2], which is to be isolated by extraction with ether. the solubility of malononitrile in ether at room temperature is 20.0 g/100 ml, and in water is 13.3 g/100 ml. what weight of malononitrile would be recovered by extraction with (a) three 100-ml portions of ether and (b) one 300-ml portion of ether? suggestion: for each extraction, let x equal the weight extracted into the ether layer. in part (a), the concentration in the ether layer is x/100 and in the water layer is (30 x)/300; the ratio of these quantities is equal to k 20/13.3.