How do the atoms of a molecule stay together? Molecules: Molecules form when two or more atoms join together chemically to create a new substance. In some cases, the two or more atoms will be of the same element. Other times, the atoms will be from two or more different elements to fo...
How do you know the number of atoms in a substance? «on:September 10, 2018, 05:28:13 AM » How do you know that when something like potassium chloride (KCl) has one potassium atom and one chlorine atom but something like sulphuric acid (H2SO4) has 2 hydrogen, one sulphur and ...
How can the chemical properties of a substance be determined? Explain how to determine how and if atoms have valence electrons. What do atoms form when they share electron pairs? Conduction of electricity is a property of all metals. Explain how the bonding in metals allows them to...
When these photons strike a metal surface, they act like billiard balls, transferring their energy to electrons, which become dislodged from their "parent" atoms. Once freed, the electrons move along the metal or get ejected from the surface. The particle theory of light had returned -- with...
In the chemical reaction, compounds break down to form various gases. Thereactants(the original chemical compounds) have a lot of energy stored up as chemical bonds between differentatoms. When the compound molecules break apart, theproducts(the resulting gases) may use some of this energy ...
Chemistry in Biology The activation energy is the minimum amount of energy needed for reactants to form products in a chemical reaction. Energy of Reactions 6.2 Chemical Reactions Chapter 6 Chemistry in Biology A catalyst is a substance that lowers the activation energy needed to start...
He also proved that atoms exist and figured out that light behaves as both a particle and a wave. To top it all off, he developed his famous equation E = mc², which describes the relationship between matter and energy, the same year. He was only 26 years old. Without a doub...
molecule,a group of two or more atoms that form the smallest identifiable unit into which a pure substance can be divided and still retain the composition and chemical properties of that substance. Why do atoms form molecules? The quantum physics of chemical bonds explained...
When these photons strike a metal surface, they act like billiard balls, transferring their energy to electrons, which become dislodged from their "parent" atoms. Once freed, the electrons move along the metal or get ejected from the surface. The particle theory of light had returned -- with...
What substance is more necessary to our existence than any other? Water. At its most basic, water is a molecule with one oxygen atom and two hydrogen atoms, bonded together by shared electrons. It is a V-shaped polar molecule, which means that it's charged positively near the hydrogen ...