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31 Cards in this Set
- Front
- Back
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Where does chemistry begin |
Stars |
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Source of the chemical elements |
Stars |
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What is the synonym of chemical |
Matter |
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Anything that has mass |
Chemical |
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This includes everyday substances like water, caffeine and sugar. Elements featured on the periodic table are chemicals, and so are small molecules like caffeine, large molecules such as deoxyribonucleic acid (DNA) and almost- infinite chains called polymers, such as plastics. |
Chemical |
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How many elements are there |
118 |
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How many elements are man made |
20 |
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Are the building blocks that create the world surrounding us |
Elements |
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Dehydrogen monoxide aka? |
Water |
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1,3,7 tremethyl xanthine |
Caffeine |
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Examples of Misconceptions |
-chemical free products are safer -if you cant pronounce it, it's bad for you -organic products > synthetic -chemist are evil |
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Do chemical free products exist? |
No. |
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A material which cannot be broken down or changed into another substance USING CHEMICAL MEANS |
Element |
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Substance consisting of only one type of atom |
Element |
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May be thought as the basic chemical building blocks of matter |
Element |
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All atoms in an ________ contain the same number of protons |
Element |
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What can transmute an element into another one |
A nuclear reaction |
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This type of reaction cant happen to elements |
Chemical reaction |
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All matter consists of particles called? |
Atom |
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______ bond to each other to form elements, which contain only one kind of atom. |
Atoms |
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______ of different elements form compounds, molecules, and objects. |
Atoms |
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Three parts if an atom |
Protons ProtonsNeutrons Electrons |
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Have positive electrical charge and are found together with neutrons |
Protons |
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No electrical charge in the nucleus of each atom |
Neutrons |
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Orbit the nucleus |
Electrons |
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Smallest particles that make up elements |
Atoms |
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Cannot be divided using chemicals |
Atoms |
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BASIC chemical building block of matter |
Atoms |
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How many times more energy can nuclear reaction produce than chemical reaction |
500,000 |
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Substance = |
Molecule |
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2 or more different elements |
Molecule |
