Does boiling point increase across a period? Melting and boiling points increase across the three metals because of the increasing strength of their metallic bonds. The number of electrons which each atom can contribute to the delocalized “sea of electrons” increases. The atoms also get smaller and have more protons as you go from sodium […]
What happens if you can see yourself in a black mirror?
What happens if you can see yourself in a black mirror? If you’re suddenly feeling more of a distance from the image in the mirror and photos, it’s likely that you’ve had a major life change recently and your filter through which you view yourself has changed. In your eyes it’s like literally seeing a […]
Why do most students prefer last minute?
Why do most students prefer last minute? Why students study last minute Procrastination and the perception that they perform better under pressure and cramming “just works better for them”, was also among the top reasons for last-minute study habits. Is it good to study last minute? The last 24 hours before an exam can be […]
What will happen if two oceanic plates collide?
What will happen if two oceanic plates collide? When two oceanic plates converge, the denser plate will end up sinking below the less dense plate, leading to the formation of an oceanic subduction zone. Old, dense crust tends to be subducted back into the earth. An example of a subduction zone formed from a convergent […]
What are the wrench sizes in order?
What are the wrench sizes in order? Standard American wrench sizes, from the largest to smallest and measured in inches, are 5/8, 19/32, 9/16, 1/2, 7/16, 3/8, 11/32, 5/16, 9/32, 1/4, 7/32, 3/16, 5/32 and 1/8. Wrenches are available in a set or individually. A small set has six to 10 wrenches, ranging from 5/16 […]
What is the purpose of the iodine clock reaction?
What is the purpose of the iodine clock reaction? The “clock reaction” is a reaction famous for its dramatic colorless-to-blue color change, and is often used in chemistry courses to explore the rate at which reactions take place. The color change occurs when I2 reacts with starch to form a dark blue iodine/starch complex. Why […]
What is the most economical central heating system?
What is the most economical central heating system? For most of us, the cheapest heating system is going to be mains gas fuelled. If you’re living off the grid, LPG is the most cost effective heating option. If you take full advantage of Economy 7 electricity tariffs, you may be able to match LPG systems […]
What is the minimum transmission bandwidth?
What is the minimum transmission bandwidth? Minimum Transmission Bandwidth (Using Ideal Nyquist Pulses) As seen the bandwidth required is (Rb)/2 (∵Rb =1/Tb) for the Nyquist pulse shown above. It is the peculiar scheme of overlapping signals that results in minimum transmission bandwidth. How many signaling levels are needed? How many signal levels do we need? […]
Which states are part of Appalachia?
Which states are part of Appalachia? The Region’s 25 million residents live in parts of Alabama, Georgia, Kentucky, Maryland, Mississippi, New York, North Carolina, Ohio, Pennsylvania, South Carolina, Tennessee, and Virginia, and all of West Virginia. What percentage of Appalachia is white? 84 percent Where does the Appalachian accent come from? Historically, the term “Appalachian […]
Is the image in a mirror real or virtual?
Is the image in a mirror real or virtual? Key Points Reflected images can be either real or virtual. In a plane mirror, the images are virtual. The virtual images in a plane mirror have a left-right inversion. Why are real images always inverted? Real image is found when the rays of light converge at […]