Month: September 2018

Is CL more electronegative than C? Check out boron: it’s less electronegative than hydrogen [2.0 vs. 2.2]….Carbon is More Electronegative Than You Think. Element Electronegativity (Pauling) F 4.0 [3.98] O 3.4 [3.44] Cl 3.2 [3.16] N 3.0 [3.04] Who is more electronegative N or CL? Nitrogen is more electronegative than Chlorine. FON- Fluorine Oxygen Nitrogen […]

What increases red blood cells? 5 nutrients that increase red blood cell counts red meat, such as beef. organ meat, such as kidney and liver. dark, leafy, green vegetables, such as spinach and kale. dried fruits, such as prunes and raisins. beans. legumes. egg yolks. What makes the blood look red? Human blood is red […]

Why can you safely hold your bare hand in a 200 ◦ C oven for a few seconds? The air that immediately exits the oven as you open it indeed has 200°C. But cannot be in contact with your hand for more than a few moments since it raises quickly. This is way to short […]

How do photographers use strobes? You simply punch two numbers into the light meter that you set your camera for (shutter speed and ISO). Then you ‘fire’ your strobe light while holding the light meter in front of your subject. The light meter will display an aperture number. What light is used to reduce shadows? […]

Which object experiences the greatest acceleration? Car A Which vehicle experiences the greater change in acceleration? (c) Mass and acceleration are inversely proportional to each other. Therefore, car experiences greater acceleration due to its smaller mass. (d) Due to its smaller mass or opposition to the force exerted on it, the car is likely to […]

Why is Jupiter so huge? The traditional view is that Jupiter first formed a rocky core, several times the size of Earth, which then attracted a still larger outer envelope of gas. This process is known as “accretion.” Boss believes that gas giants such as Jupiter may have formed as a result of instability in […]

What happens when a solid turns into a liquid? When a solid is heated the particles gain energy and start to vibrate faster and faster. Although the particles are still loosely connected they are able to move around. At this point the solid is melting to form a liquid. The particles in the liquid are […]

Is Melting exothermic or endothermic? Phases and Phase Transitions Phase Transition Direction of ΔH Fusion (Melting) (solid to liquid) ΔH>0; enthalpy increases (endothermic process) Vaporization (liquid to gas) ΔH>0; enthalpy increases (endothermic process) Sublimation (solid to gas) ΔH>0; enthalpy increases (endothermic process) What are two examples of exothermic? Examples of Exothermic Reactions any combustion reaction. […]