Can you use hand signals instead of blinkers? Is it legal to use hand turn signals? Absolutely. These three hand signals are recognized under the Uniform Vehicle Code, which state laws conform to. But apart from these three, there’s another hand turn signal that some people use to inform or allow drivers from the rear […]
Do the bubbles in boiling water contain air?
Do the bubbles in boiling water contain air? These bubbles are indeed air. Most water has some air dissolved in it. When water is boiled, it undergoes a physical change, not a chemical change. The molecules of water don’t break apart into hydrogen and oxygen. Do small bubbles mean water is boiling? So, when a […]
Does sulfur conduct electricity water?
Does sulfur conduct electricity water? Sulfur (S), also spelled sulphur, nonmetallic chemical element belonging to the oxygen group (Group 16 [VIa] of the periodic table), one of the most reactive of the elements. Pure sulfur is a tasteless, odourless, brittle solid that is pale yellow in colour, a poor conductor of electricity, and insoluble in […]
Who invented radioactive?
Who invented radioactive? Henri Becquerel How did we discover uranium? Uranium was discovered in 1789 by Martin Klaproth, a German chemist, who isolated an oxide of uranium while analyzing pitchblende samples from the Joachimsthal silver mines in the former Kingdom of Bohemia, located in the present day Czech Republic. He named his discovery “uran” after […]
Why is francium so reactive?
Why is francium so reactive? Explanation: Francium is an alkali metal in group 1/IA. All alkali metals have one valence electron. This makes it easier to remove the electron and makes the atom more reactive. Why is F2 so reactive? Why is fluorine gas (F2) reactive if it is already a molecule? This is because […]
Which is older fault or intrusion?
Which is older fault or intrusion? An intrusion is always younger than the rock layers around and beneath it. A fault is always younger than the rock it cuts through. The surface where new rock layers meet a much older rock surface beneath them is called an unconformity. An unconformity is a gap in the […]
Can a fish live without eyes?
How does snow help a sled move down a hill?
Does CH4 have a dipole?
Does CH4 have a dipole? The dipole moment of methane CH4 is zero. Is CH4 a dipole-dipole force? Also CH4 molecules cannot have permenant dipole-dipole attractions because each of the species bonded to the carbon is identical and CH4 has a tetrahedral shape. Therefore the strongest intermolecular forces between CH4 molecules are Van der Waals […]
How are fuel classified give two examples?
How are fuel classified give two examples? Generally, fuels can be classified into two factors: Wood, natural gas and petroleum are the example of natural fuel whereas coal tar, producer gas tanbark are the example of artificial fuels. Note: The energy produced by the combustion of one kilogram of fuel is known as its calorific […]