What acetone Cannot dissolve? Many kinds of plastic do not dissolve in acetone. Polypropylene and nylon are unaffected, PTFE unsurprisingly handles it just fine as well. Two kinds of plastic that do dissolve in acetone are PVC and polystyrene. Why is nail polish soluble in acetone but not in water? Nail varnish does not dissolve […]
Which of the following relations is correct for permeability?
Who is famous for playing the clarinet?
Who is famous for playing the clarinet? Famous Classical Clarinetists The clarinet is an integral part of any symphony orchestra and the list of notable clarinetists is lengthy. Among twentieth century musicians, three of the most-mentioned are Martin Frost, Sabine Meyer, and Richard Stoltzman. Is clarinet the hardest instrument to play? The clarinet is no […]
Is human eye better than camera?
Is human eye better than camera? Most current digital cameras have 5-20 megapixels, which is often cited as falling far short of our own visual system. This is based on the fact that at 20/20 vision, the human eye is able to resolve the equivalent of a 52 megapixel camera (assuming a 60° angle of […]
What should my body water percentage be for my age?
What should my body water percentage be for my age? Water as percentage of body weight in adults Adults Ages 12 to 18 Ages 19 to 50 Male average: 59 range: 52%–66% average: 59% range: 43%–73% Female average: 56% range: 49%–63% average: 50% range: 41%–60% What is the greatest regulator of water intake? The thirst […]
What is the working principle of capacitor?
What is the working principle of capacitor? A capacitor works on the principle that the capacitance of a conductor increases appreciably when an earthed conductor is brought near it. Hence, a capacitor has two plates separated by a distance having equal and opposite charges. What is the main function of capacitor? A capacitor is an […]
What is the difference between structural and ball and stick model?
What is the difference between structural and ball and stick model? A molecular formula uses chemical symbols and subscripts to indicate the exact numbers of different atoms in a molecule or compound. A structural formula indicates the bonding arrangement of the atoms in the molecule. Ball-and-stick and space-filling models show the geometric arrangement of atoms […]
How does electricity flow in a circuit draw an open circuit?
How does electricity flow in a circuit draw an open circuit? The electric circuit in which there is a gap in the connections between the terminals of the cell, wires and the bulb, etc is called an open circuit (or incomplete circuit). Electricity does not flow through an open circuit because there is a gap […]
What happens when stomata are open?
What happens when stomata are open? When stomata are open, water vapor and other gases, such as oxygen, are released into the atmosphere through them. A number of factors can affect the exchange of gases between a leaf and the atmosphere. What allows stomata to open and close? Specialized cells known as guard cells surround […]