Is milk an element, compound or mixture? Which class of compounds contains only carbon, hydrogen, and nitrogen? What is the molecular composition of a human cell? What type of element is calcium? What chemical element is found in chocolate?
In general, an atom’s electronegativity is affected by both its atomic number and the distance at which its valence electrons reside from the charged nucleus. The higher the associated electronegativity number, the more an element or compound attracts electrons towards it. The most electronegative a...
Why does chlorine have a higher electronegativity value than krypton? If salt lowers the melting point of ice, what does that mean? What will cause the ice to melt? What does it mean if its dilute? Why does the plasma membrane form a bilayer?
The scientific study of matter's characteristics and behaviour is known as chemistry.andare different from the normal vocabulary. It is a branch of natural science that examines the building blocks of matter, including the atoms, molecules, and ions that make up compounds and their composition, s...
Phase changes occur when substances change from one form of matter to another. Phases changes occur when there is a gain or loss of heat in the substance.Answer and Explanation: Steam is the gaseous form of water. Water is liquid at room temperature on Earth. When heat is added to water...
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