Chemistry Test 1
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| Accuracy | refers to the closeness of measurements to the correct or accepted value
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| Precision | refers to the closeness of a set of measurements of the same quantity made in the same way
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| What is not a chemical? | light, sound, energy
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| Organic | Study of most carbon (C) containing compounds
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| Inorganic | Study of compounds that are not organic
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| Physical | Study of the properties and changes of matter and their relation to energy
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| Analytical | The identification of the compounds and composition of materials
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| Biochemistry | Study of the substances and processes occurring in living things
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| Theoretical | The use of math and computes to understand the principles behind observed chemical behavior and to design and predict the properties of new compounds
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| inference | conclusion based on facts rather then direct observation
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| What is a theory? | A broad generalization that explains a body of facts of phenomena
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| What is chemistry? | the study of matter and its ability to change
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| What is a chemical? | is any substance that has a definite composition
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| Matter | anything that has mass and takes up space
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| Mass | a measure of the amount of matter
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| Volume | the amount if three dimensional space an object occupies
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| Atom | the smallest unit of an element that maintains the properties of that element
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| Element | a pure substance made of only one kind of atom
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| Compound | a substance that is made from the atoms of two or more elements that are chemically bonded
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| Physical property | a characteristic that can be observed or measured with out changing the identity of the substance
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| Physical Change | a change in a substance that does not involve a change in the identity of the substance
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| change of state | is a physical change of a substance from one state to another
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| What are three common states of matter? | solid, liquid, and gas
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| chemical property | relates to a substance’s ability to undergo changes that transform it into different substances
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| reactants | • The substances that reacts in a chemical change
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| products | • The substances that are formed by the chemical
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| mixture | a blend of two or more kinds of matter, each of which retains its own identity and properties
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| Homogenous mixtures | are uniform in composition. They have the same proportion of components throughout
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| Heterogeneous mixtures | are not uniform throughout
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| Independent variable | the one factor that you change during an experiment
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| Dependant variable | the factor that you observe
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Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
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If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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Created by:
mmichell08
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