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matter
Question | Answer |
---|---|
Where are transition metals located on the periodic table? | bottom and the middle |
Where are the least reactive elements on the periodic table? | far right |
Where are the most reactive elements on the periodic table? | far left |
Where are the metaloids on the periodic table? | on the zigzag |
Where are the nonmetals on the periodic table? | far rightsize |
Where are the metals on the periodic table? | on the left |
What is the smallest part of an element? | atom |
What is the smallest part of a compound? | molocule |
What does a period represent? | row |
What does a group represent? | a column |
What is the definition of mass? | large number of people or objects crowded together. |
What is the Law of Conservation of Matter? | matter can not be created nor destroyed |
What is the definition of density? | the degree of compactness of a substance. |
What is the formula for density? | mass divided by volume |
What are the types of physical properties? | appearance, texture, color, odor, melting point, boiling point, density, solubility, polarity |
What are the types of chemical properties? | reactivity,toxicity,flammability |
What is the definition of melting point? | the temperature at which a given solid will melt. |
What is the definition of combustibility? | a measure of how easily a substance will set on fire, through fire or combustion |
What is the definition of reactivity? | the state or power of being reactive |
What is the definition of boiling point? | the temperature at which a liquid boils and turns to vapor. |
What is a solute? | the minor component in a solution, dissolved in the solvent. |
What is a solvent? | able to dissolve other substances. |
What is a solution? | a substance dissolve in another substance |
What is a homogeneous mixture? | all parts are the same |
What is a heterogeneous mixture? | not the same |
What does the atomic number represent? | number of protons |
What does the atomic mass represent? | number or neutrons plus protons |
What is a noble gas? | make up a group of chemical elements with similar properties; |
How do you find the number of neutrons? | subtract the number of protons from the mass number. |
What are reactants and products? | In a chemical reaction, substances called reactants are changed into other substances called products. |