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?'s Chem.Sci.Test
Questions for my Chemistry Science TEST!!!
Question | Answer |
---|---|
What is a pH scale? | Is a way to measure how acidic or basic a solution is. |
What is the pH range of a solution? | 0 to 14 |
How can acids be identify? | 1. Sour taste 2. Reactions with some metals 3. Reactions with bases. |
How can bases be identify? | 1. Bitter Taste 2. Slippery feel 3. Reactions with acids. |
What is a neutral solution? | A neutral solution is neither an acid or a base. Ex: Water |
What are Indicators? | Used to determine the pH of a solution.Determines whether a solution is acidic, basic or neutral. Ex: Litmus paper,Phenolphthalein, and pH paper. |
What is a Chemical equation? | A balanced chemical equation has the same # of each kind of atom on the reactant side as on the product side. |
What are Coefficients? | They are the #’s that come before the chemical formula and indicate the # of particles that participate in the reaction. |
What does no subscript mean for a element? | If there is no subscript then there is only one atom in that element. |
What do subscripts show/represent in a chemical formula? | It shows how many atoms are for that element. |