Basic Chemistry
Nature of Matter
Bonds
Water
Water: Part 2
100
The basic unit for chemistry
What is the atom?
100
Number of protons and neutrons of an element.
What is atomic mass?
100
This type of bond results when electrons are "shared" between atoms.
What is a covalent bond?
100
The most important compound in most living things.
What is water?
100
The sticking of water molecules to another substance.
What is adhesion?
200
This part of an atom contains a positive (+) charge
What is a proton?
200
The number of protons in an element.
What is the atomic number?
200
This type of bond forms when one electron is "transferred" from one atom to another.
What is an ionic bond?
200
Water does this when frozen.
What is expands?
200
This occurs when two substances are mixed physically but not chemically.
What is a mixture?
300
Protons and neutrons are found here.
What is the nucleus?
300
These help represent elements.
What are chemical symbols?
300
These result from ionic bonds and can have either a (+) or (-) charge.
What are ions?
300
Water has ________ because one end is slightly negative while the other is slightly positive.
What is polarity?
300
This type of mixture occurs when all contents are mixed evenly.
What is a solution?
400
A pure substance composed of only one atom.
What is an element?
400
When 2 or more elements combine in a definite proportion.
What is a compound?
400
When only two electrons are shared in a covalent bond...often represented like C-H.
What is a single covalent bond?
400
The attraction of a H on one water molecule to the O on another results in this type of bond.
What is hydrogen?
400
In a solution, the substance being dissolved.
What is the solute?
500
Two or more atoms of the same element having same # of protons but not neutrons.
What are isotopes?
500
NaCl is an example of this; shorthand for compounds
What is a chemical formula?
500
These are the results of covalent bonds
What is a molecule?
500
The ability for water molecules to "stick" together.
What is cohesion?
500
In a solution, the substance doing the dissolving.
What is a solvent?
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