How many molecules are in a mole? The mole is represented by Avogadro’s number, which is 6.022×1023 atoms or molecules per mol. What is silica composed of? Silica (quartz): Silica, SiO2, is a chemical compound that is composed of one silicon atom and two oxygen atoms. It appears naturally in several crystalline forms, one of […]
Which among Following is a noble gas?
Are rainbows at night rare?
Are rainbows at night rare? The moon is the key, just as sunlight produces rainbows during the day, moonlight can produce rainbows at night. Moonbows are rare because moonlight is not very bright. A bright moon near to full is needed, it must be raining opposite the moon, the sky must be dark and the […]
What rollercoaster has the longest drop?
What rollercoaster has the longest drop? Kingda Ka How do drop towers slow down? And as Lenz’s law states, that magnetic field opposes the motion of the magnets. As a result, the magnetic field pushes up against the seat, causing the cart to slow down. This is how a drop tower ride’s magnetic brakes work. […]
Is Powerade better than Gatorade?
Is Powerade better than Gatorade? Powerade has more vitamins than Gatorade Neither has any fat or protein. However, Gatorade contains 10 more calories and slightly more sodium than Powerade per serving. On the other hand, Powerade packs more micronutrients, including magnesium, niacin, and vitamins B6 and B12, which play important roles in your body. Which […]
What are the 3 major parts of a seed?
What are the 3 major parts of a seed? The three primary parts of a seed are the embryo, endosperm, and seed coat. The embryo is the young multicellular organism before it emerges from the seed. The endosperm is a source of stored food, consisting primarily of starches. The seed coat consists of one or […]
What happens if a bit of placenta is left inside?
What happens if a bit of placenta is left inside? Sometimes the placenta or part of the placenta or membranes can remain in the womb, which is known as retained placenta. If this isn’t treated, it can cause life-threatening bleeding (known as primary postpartum haemorrhage), which is a rare complication in pregnancy. What happens if […]
What two language families are in China?
What two language families are in China? The two closely related language groups, Hmong and Mien (also known as Miao and Yao), are thought by some to be very remotely related to Sino-Tibetan; they are spoken in western China and northern mainland Southeast Asia and may well be of Austro-Tai stock. Who controls Tibet? People’s […]
What can we use iodine to test for?
What can we use iodine to test for? In the presence of starch, iodine turns a blue/black colour. It is possible to distinguish starch from glucose (and other carbohydrates) using this iodine solution test. For example, if iodine is added to a peeled potato then it will turn black. Benedict’s reagent can be used to […]
Is beating of drum periodic motion?
Is beating of drum periodic motion? The beating of the drum occurs at defined period. So, it is a periodic motion. Which is periodic wind? Periodic winds blow at regular intervals or in regular cycles. They are winds that result from localised differences in pressure and temperature. For example, land and sea breezes and the […]