Why do we not see the other side of the moon? We don’t see the far side because “the moon is tidally locked to the Earth,” said John Keller, deputy project scientist for NASA’s Lunar Reconnaissance Orbiter project. If the moon were a perfect sphere, then the gravity felt on the far side and the […]
Is salt the solvent in a saltwater solution?
Is salt the solvent in a saltwater solution? In a saltwater solution, salt is the solute and water is the solvent. What is the solvent in a salt water solution? In a NaCl solution (salt-water), the solvent is water. A solute is the component in a solution in the lesser amount. In a NaCl solution, […]
How much does it cost to run 100w light bulb?
How much does it cost to run 100w light bulb? A kilowatt-hour is 1,000 watts used for one hour. As an example, a 100-watt light bulb operating for ten hours would use one kilowatt-hour….What Uses Watts in Your Home. Appliance/Equipment 100-Watt Bulb (100 W) Equivalent compact fluorescent Avg. Usage 4 hours/day 4 hours/day Monthly kWh […]
What is the relation between power and voltage?
What is the relation between power and voltage? Electrical Energy in Circuits In other words, Energy = power x time and Power = voltage x current. Therefore electrical power is related to energy and the unit given for electrical energy is the watt-seconds or joules. Electrical power can also be defined as the rate of […]
What phrase is an accurate description of the process of erosion?
What phrase is an accurate description of the process of erosion? The correct option is C. Erosion is the process by which the earth surface get worn down. It involves the removal of soil, rocks or dissolved material from one location and its transportation to another location. What is weathering one word answer? : the […]
What is the best way to separate the mixture?
What is the best way to separate the mixture? Summary Mixtures can be separated using a variety of techniques. Chromatography involves solvent separation on a solid medium. Distillation takes advantage of differences in boiling points. Evaporation removes a liquid from a solution to leave a solid material. Filtration separates solids of different sizes. Who will […]
Why do electrons want a full outer shell?
Why do electrons want a full outer shell? The valence electrons (outer-most electrons) determine most of the bonding behavior in atoms. Atoms want a full outer shell because it completes all the gaps in the outside. With no gaps, other electrons don’t want to fit into those spaces. For example, a noble gas like Neon […]
What is wrong with carbon dating?
What is wrong with carbon dating? The group theorizes that large errors in carbon dating result from fluctuations in the amount of carbon 14 in the air. Carbon dating is unreliable for objects older than about 30,000 years, but uranium-thorium dating may be possible for objects up to half a million years old, Dr. Zindler […]
Why is Al3+ smaller than Na+?
Why is Al3+ smaller than Na+? Al3+ because they all have the same number of electrons, however Al3+ has the most protons and therefore greatest nuclear charge. In Al3+, the same number of electrons are being attracted by more protons in the nucleus, so the electrons are being pulled closer to the nucleus, reducing the […]
Do scientists speculate?
Do scientists speculate? Speculation is so easy and tempting in settings where it leads more to errors than to accurate information, that most often speculation in science is discouraged. But there is still a limited, useful, role for speculation in science. What does Aristotle say about science? The third and final division of science for […]