How do we know dark matter exists? Scientists study dark matter by looking at the effects it has on visible objects. Scientists believe that dark matter may account for the unexplained motions of stars within galaxies. Chandra observed a cluster of galaxies called Abell 2029 located about a billion light-years from Earth. What is dark […]
How does temperature affect the rate of chemical reactions in glow sticks?
How does temperature affect the rate of chemical reactions in glow sticks? Increasing temperature typically increases the rate of the chemical reaction. Increasing temperature speeds up the motion of molecules, so they are more likely to bump into each other and react. In the case of glow sticks, this means a hotter temperature will make […]
Which car has the shortest braking distance?
What is an example of a structural adaptation?
What is an example of a structural adaptation? Structural and Behavioral Adaptations An example of a structural adaptation is the way some plants have adapted to life in dry, hot deserts. Plants called succulents have adapted to this climate by storing water in their short, thick stems and leaves. Seasonal migration is an example of […]
What are 3 main characteristics of amphibians?
What are 3 main characteristics of amphibians? Amphibians Amphibians are vertebrates. Their skin is smooth and slimy. Amphibians breath through their skin, as well as their lungs in some cases. Amphibians are cold-blooded. They have a complex life cycle (larval and adult stages). Many species of amphibians vocalize. Can Amphibians live on land and water? […]
What makes a molecular orbital stable?
What makes a molecular orbital stable? Bonding molecular orbitals are formed by in-phase combinations of atomic wave functions, and electrons in these orbitals stabilize a molecule. Antibonding molecular orbitals result from out-of-phase combinations of atomic wave functions and electrons in these orbitals make a molecule less stable. What is the difference between bonding and antibonding […]
What are examples of the 5 main types of energy?
What are examples of the 5 main types of energy? Energy exists in many different forms. Examples of these are: light energy, heat energy, mechanical energy, gravitational energy, electrical energy, sound energy, chemical energy, nuclear or atomic energy and so on. Each form can be converted or changed into the other forms. What are the […]
How many years does it take to be an archaeologist?
How many years does it take to be an archaeologist? The minimum amount of education needed to work in the field of archaeology is a 4-year college degree (BA or BS). Usually archaeologists major in anthropology or archaeology. They also receive training in archaeological field and laboratory techniques. Is it hard to get a job […]
Why do 777 not have winglets?
Why do 777 not have winglets? One reason that the 777 does not feature such wingtip extensions is the operational limits these would place on the aircraft. The 777-200LR and -300ER variants of the aircraft have a wingspan of 64.8 meters. Manufacturers also have to consider the added weight that winglets give to an aircraft. […]
How many unpaired electrons will there be in a high spin octahedral complex of Fe2 +?
How many unpaired electrons will there be in a high spin octahedral complex of Fe2 +? 4 unpaired electrons How many unpaired electrons are present in the ground state of P Z 15? three unpaired electrons How many unpaired electrons are present in p is equal to 15? 3 unpaired electrons How many unpaired electrons […]