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Elements
Properties of Water
Carbon Based Molecules
Chemical Reactions
100
The space surrounding the outside of the nucleus of an atom contains...
What are electrons?
100
Bugs can walk on water because of which property of water?
What is surface tension?
100
Amino acids are monomers of ...
What is protein?
100
________ are on the left side of a chemistry equation, and ______ are on the right side of the chemistry equation.
What are reactants and products?
200
What type of electrons are in the outer most shell of an atom and are available for bonding?
What are valence electrons?
200
Ice floats on water because of which property of water?
What is less dense as a solid?
200
A monosaccharide is a monomer of which of the four Carbon based macromolecules?
What is carbohydrate?
200
What do you call the energy that is needed to start a chemical reaction?
What is activation energy.
300
Bonds that form when atoms transfer (give away) electrons are called ...
What are ionic bonds?
300
When salt is dissolved in water, salt is the solute and water is the...
What is solution?
300
Which macromolecule gives people quick energy?
What is a carbohydrate?
300
Enzymes affect the reactions in living cells by changing the ...
What is speed or rate of the reaction?
400
The nucleus is made of...
What are protons and neutrons?
400
Solutions that contain high concentrations of H+ ions are called...
What are acids?
400
DNA and RNA are examples of which macromolecule?
What is nucleic acid?
400
Chemical reactions that give off energy are ______thermic and chemical reactions that absorb energy are ____thermic.
What is exothermic and endothermic?
500
A covalent bond is formed when atoms _______ electrons.
What is share?
500
Which property of water gives water slightly positive hydrogen sides and a slightly negative oxygen side.
What is polarity?
500
This molecule provides the body with temperature regulation because it acts as an insulator.
What is a lipid (fat)
500
Without enzymes, chemical reactions in the body would happen too
What is slow?