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32 Cards in this Set
- Front
- Back
An element has 14 protons, 15 electrons, and 15 neutrons what is the atomic number |
14 protons show the atomic number
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Nucleus contains |
protons and neutrons |
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How do you find atomic mass? |
add protons and neutrons |
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Oxygen |
2 hydrogens and one oxygen |
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Covalent bonds are |
shared electrons |
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ionic bonds |
give or take electrons |
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cohesion |
a molecule sticking to itself |
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adhesion |
a molecule sticking to other molecules |
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acids |
pH below 7 |
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Bases |
pH above 7 |
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Carbon can |
bond 4 times because it has 4 valence electrons |
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Carbohydrates are made up of |
simple sugars |
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Proteins are made up of |
amino acids |
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Lipids are made up of |
glycerol and fatty acid tails |
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Nucleic acids are made up of |
nucleotides |
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water can form |
hydrogen bonds |
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water can form hydrogen bonds because |
water is a polar molecule |
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enzymes speed up chemical reactions by |
lowering the activation energy |
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dehydration synthesis |
taking away water and building up |
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energy-absorbing |
endothermic |
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energy-releasing |
exothermic |
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buffer |
compound that prevents sharp and sudden changes in pH |
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monomer |
small unit that makes up polymers |
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polymers |
Makeup macromolecules |
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4 macromolecules |
Carbohydrates, lipids, nucleic acids, proteins |
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carbon can bond with |
hydrogen oxygen nitrogen phosphorus sulfur |
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carbon bonds can be |
single, double, or triple covalent bonds |
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why does water stay warm |
high heat capacity |
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Solvent |
what is doing the dissolving |
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Solute |
What is being dissolved |
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Suspension |
the mixture of water and the nondissolved substance |
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solution |
the mixture created when the solvent is mixed throughout |