Can hydrogen be used to fill balloons?

Can hydrogen be used to fill balloons? Hydrogen is another gas lighter than air; it’s even lighter than helium. Hydrogen, however, is not used in balloons and this demonstration shows why. Helium is a special gas called a Noble Gas, which means it doesn’t burn. When a match is held near a helium-filled balloon, the […]

How many grams are in 4 moles of oxygen?

How many grams are in 4 moles of oxygen? 128 g What is the formula for calculating moles? Use the molecular formula to find the molar mass; to obtain the number of moles, divide the mass of compound by the molar mass of the compound expressed in grams. What is the mole equation? Avogadro’s number […]

What are the three termination processes in free radical polymerization?

What are the three termination processes in free radical polymerization? The termination steps of free radical polymerization steps are of two types: recombination and disproportionation. In a recombination step, two growing chain radicals form a covalent bond in a single stable molecule. For the example of a vinyl polymer, ——-CH2–C°HX + ——-CH2–C°HX → ——-CH2–CH2X–CH2X–CH2——- What […]

Does an electric oven need its own power supply?

Does an electric oven need its own power supply? Electric cookers require lots of power to operate since they generate intense amounts of heat. This means that you need to get at least a 13 amp fuse, although newer models will most likely require a 32 amp fuse (read your product’s specifications to check its […]

What is the meaning of resonant frequency?

What is the meaning of resonant frequency? Resonant frequency is the oscillation of a system at its natural or unforced resonance. Resonance occurs when a system is able to store and easily transfer energy between different storage modes, such as Kinetic energy or Potential energy as you would find with a simple pendulum. What is […]

Is Computer Science hard?

Is Computer Science hard? Learning the discipline of Computer Science is a hard and difficult endeavor for most students. However, if you are willing to invest the time and learn serious time management skills, most students can successfully learn the discipline and pursue successful careers in Computer Science fields. Is a computer science degree worth […]

Why does salt stay in the ocean and not evaporate?

Why does salt stay in the ocean and not evaporate? Salt in seawater is merely dissolved in the water, not chemically bonded to it. When water evaporates (one molecule at a time), only pure water returns to the atmosphere. When airborne droplets of salty ocean spray evaporate, their minute loads of salt are left floating […]

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