Which One Is The Best Way To Determine Whether An Unknown Sample Is A Substance? Melting or boiling point is another property that scientists can use to identify a substance. Melting point is the temperature at which a substance changes from solid → liquid. Boiling point is the temperature at which a substance changes from
What Are Similarities And Differences Between Elements? Element Composition Elements contain only one type of atom. Each atom has the same atomic number i.e., the same number of protons in their nucleus. Ability to break down Elements cannot be broken down into simpler substances by chemical reactions. Representation An element is represented using symbols. What
Can Substances Change Into Different Substances Yes Or No? Can substances change into different substances yes or no? Chemical changes occur when bonds are broken and/or formed between molecules or atoms. This means that one substance with a certain set of properties (such as melting point, color, taste, etc) is turned into a different substance
Can Something Be Both A Physical And Chemical Change? Can something be both a physical and chemical change? When a candle burns, both physical and chemical changes take place. Eating of food is another example where both physical and chemical changes occur simultaneously. Can an object have both physical and chemical change? Answer: Burning of