Does the atmosphere block UV rays? A layer of ozone in the upper atmosphere absorbs UV radiation and prevents most of it from reaching the Earth. This means that more ultraviolet radiation can pass through the atmosphere to the Earth’s surface, particularly at the poles and nearby regions during certain times of the year. What […]

What type of interaction is a hydrogen bond? Hydrogen bonding is a special type of dipole-dipole attraction between molecules, not a covalent bond to a hydrogen atom. It results from the attractive force between a hydrogen atom covalently bonded to a very electronegative atom such as a N, O, or F atom and another very […]

Which factor increases the rate of dissolution? Temperature. Heating up the solvent gives the molecules more kinetic energy. The more rapid motion means that the solvent molecules collide with the solute with greater frequency and the collisions occur with more force. Both factors increase the rate at which the solute dissolves. What happens when you […]

What is the relationship between gravity and pressure in a solar nebula? The roles of gravity and pressure in the solar system is that the gravity pulls on all the particles in a nebula. Pressure is made up of collisions which cause particles to push away from each other. How do gravity and pressure keep […]

How do you do dimensional analysis in chemistry? Dimensional Analysis Identify the given (see previous concept for additional information). Identify conversion factors that will help you get from your original units to your desired unit. Set up your equation so that your undesired units cancel out to give you your desired units. Multiply through to […]

What is the name of the mechanical process? Mechanical digestion begins in your mouth with chewing, then moves to churning in the stomach and segmentation in the small intestine. Peristalsis is also part of mechanical digestion. What is mechanical breakdown of food? The term mechanical digestion refers to the physical breakdown of large pieces of […]

Is magnesium a element? Magnesium is the eighth most abundant element in the Earth’s crust, but does not occur uncombined in nature. It is found in large deposits in minerals such as magnesite and dolomite. Is magnesium pure substance or mixture? Material Material Pure Substance or Mixture Element, Compound, Homogeneous, Heterogeneous Pacific Ocean Mixture Heterogeneous […]

Why is aluminum oxide a problem? – Chronic aluminium oxide inhalation may cause pneumoconiosis with cough and exertional dyspnoea, diffuse reticulonodular shadowing on chest X-ray and a restrictive pattern of pulmonary function. In severe cases death may result from respiratory failure or corpulmonale. Is aluminum oxide bad for your health? Aluminium oxides rank amongst the […]

What is the noble gas configuration for tellurium te? [Kr] 4d10 5s2 5p4 What is the noble gas shorthand? Noble Gas notation, also known as core notation is a shortened version of the format for electron configurations using the noble gas to represent the completed orbitals of the atoms structure. Which noble gas do you […]

What do floodplains sandbars and river deltas have in common *? They have in common that all three develop in the rivers. How would a sandblasted rock differ from a rock that hasn’t been sandblasted *? How would a sandblasted rock differ from a rock that hasn’t been sandblasted? A sandblasted rock would be smoother […]