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Science TDA
Question | Answer |
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Laws of Conservation of Mass | The mass of the product of a chemical reaction must be the same as the mass of the reactants in that reaction. |
Physical Change | A substance affect only physical properties, such as its size and shape or whether it is a solid liquid or gas |
Chemical Change | Produce new substance that have properties different from those of the original substances |
Element | Substance that cannot be broken down into simpler substances |
Chemical Formula | Represent the chemical names of substances in the equation |
Compound Molecule | Made up of more than one type of atom |
Element (Diatomic) Molecule | Molecules of only one type of atom |
Chemical Equation | Short-hand form for writing what reactants are used and what products are formed in a chemical reaction |
Chemicl Reaction | Process that produces chemical change resulting in new substances that exist before a chemical reaction begin |
Reactants | Substances that exist before a chemical reaction begin |
Products | Substance that forms as a result of a chemical reaction |
Coefficient | Tells the number of molecules |
Subscripts | Tells the number of a certain type of atom in one molecule |