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|A chemical bond involving shared electrons is called a-
|Any substance that releases hydrogen ions into solution is called a-
|A chemical reaction that adds electrons to an atom is called
|.An extremely long molecule formed from numerous smaller molecules is called
|A susbstance with no fixed shape or volume is called
|a material with a fixed volume but no shape is called a
|Table salt forms a crystal in which the elements are held together by
|What type of bond is formed when two oxygen atoms share electrons to from an oxygen molecule?
|a covalent bond
|What do you call a negatively charged particle found in atom?
|What do you call a positively charged particle found in an atom called?
|The smallest particle that can retain the properties of an element is called an-
|The nucleus of the atom was first discovered by who?
|What do you call an electrically charged atom?
|A material that cannot be broken down into other materials is called-
|When three atoms come together what do you call it?
|Sodium, carbon, hydrogen and oxygen are examples of what?
|What do you the dense, central portion of an atom?
|True or False: Ice melting to become water is an example of a chemical change
|False: Ice melting to water is a physical change
|True or False: 96% of the human body is composed of these elements: carbon, oxygen, hydrogen, and nitrogen
|What is the mos abundant element by mass in the human body ?
|What is the chemical symbol for potassium? 1. P 2. Ps 3. K 4. Pt
|True or False: Isotopes have the same number of proton and electrons, but they differ in the number of neutrons
|The subatomic particles that are responsible for the chemical behavior of atoms are the:
|Water is useful in body processes because:
|It is a good solvent
|Water is most dense at 9 degrees Celsius. True or False?
|False 4 degrees celcius
|True or False: The order of the building blocks of matter by size are: quark, neutron, nucleus, atom, molecule,
|Which of these have the smallest mass? 1. atoms 2. molecule 3. proton 4. electron
|What does the cosmic rays orginate from?