How is the law of definite proportions important? The law of definite proportions dictates that a name is always associated with a specific ratio of elements found in a chemical compound. If the ratio of elements is different from that specific ratio then it is not the same compound and therefor has a different name. […]
Do 2 of the same elements make a compound?
Do 2 of the same elements make a compound? A compound is a unique substance that forms when two or more elements combine chemically. A compound always consists of the same elements in the same ratio. If the same elements combine in different ratios, they form different compounds. Types of compounds include covalent and ionic […]
How can you tell if granite is real?
Can you hack radio frequency?
Can you hack radio frequency? In fact, some hackers are even capable of using radio signals to hack into an unconnected device and steal confidential corporate data. Researchers in Israel have developed a technology that extracts information from a machine using radio frequencies and wireless communications. What are the basics of radio? Radio waves are […]
What is the meaning of sensible heat?
What is the meaning of sensible heat? Sensible heat is heat exchanged by a body or thermodynamic system in which the exchange of heat changes the temperature of the body or system, and some macroscopic variables of the body or system, but leaves unchanged certain other macroscopic variables of the body or system, such as […]
Why are clouds flat on bottom and fluffy on top?
Why are clouds flat on bottom and fluffy on top? As warm air rises, the water vapour remains invisible until the air cools enough for it to condense into water droplets. Providing that more air feeds in from below, new cloud will form there and preserve the flat bottom. The existing cloud is pushed upwards, […]
How did Bernard Palissy discover the water cycle?
How did Bernard Palissy discover the water cycle? Palissy was the first person to consider the water cycle. When he observed some coastal areas, he found out it had salt water and fresh water. He presumed the fresh water was coming from the rainfall. How did we discover the water cycle? The Earth’s water cycle […]
Why do we use thin gold foil?
Why do we use thin gold foil? For the scattering experiment, Rutherford wanted a metal sheet which could be as thin as possible. Gold is the most malleable of all known metals. It can easily be converted into very thin sheets. Hence, Rutherford selected a gold foil for his alpha-ray scattering experiment. What was most […]
How angular momentum is conserved?
How angular momentum is conserved? Rotational collisions conserve angular momentum When objects collide without a net external torque, the angular momentum is constant. The two objects exert equal, but opposite angular impulses upon each other to maintain the total angular momentum of the colliding system. Is linear and angular momentum conserved? Angular momentum, like energy […]
What causes matter to clump together?
What causes matter to clump together? Gravity is the force that all objects with mass exert upon one another, pulling the objects closer together. It causes a ball thrown into the air to fall to the earth, and the planets to orbit the sun. The tiny particles that make up matter, such as atoms and […]