Chemistry Vocab: Question Preview (ID: 25494)


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Hypothesis
a) educated guess b) formula c) metal d) product
Atom
a) proton b) basic unit of matter c) DNA d) compound
Element
a) neutron b) nonmetal c) one type of atom d) compounds
Protons
a) neutrally charged, in the nucleus, mass of 1 b) positively charged, in the orbitals, mass of 1 c) positively charged, in the nucleus, mass of 1 d) electrically charged, in the nucleus, mass of 0
Groups
a) vertical columns of elements with similar chemical properties b) horizontal columns of elements with similar chemical properties c) vertical columns of elements with different chemical properties d) horizontal columns of elements with different chemical properties
Electrons
a) positively charged, found in nucleus, mass of 1 b) negatively charged, found in the nucleus, mass of 1 c) positively charged, found in orbitals, mass of ~0 d) negatively charged, found in orbitals, mass of ~0
Most reactive metals
a) alkaline earth b) halogens c) alkali d) transition
Least reactive group
a) noble gases b) alkali earth c) alkali d) halogens
Most reactive non metals
a) Alkali Earth b) Halogens c) alkali d) noble gases
Mixture
a) compound made of two atoms b) one substance with the same chemical properties c) two or more substances chemically combined d) two or more substances physically combined
Compounds
a) two or more different atoms chemically combined b) two or more atoms physically combined c) an element d) electrons orbiting the nucleus
Physical change
a) creates a new product; cannot be reversed b) changes shape or state c) rusting of metal d) permanent hair dye
Chemical Change
a) creates a new product that cannot be reversed b) changes shape or state c) tearing paper d) freezing ice
Law of Conservation of Matter
a) matter cannot be created but can be destroyed b) matter can be created but not destroyed c) matter cannot be created or destroyed d) matter can be created and destroyed
Metalloids
a) elements that have properties of both metals and non metals b) having only properties of non metals c) having only properties of metals d) having properties of gas
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