Chemical Formula And Equations Vocabulary I Question Preview (ID: 38097)


Vocabulary. TEACHERS: click here for quick copy question ID numbers.

Evidence of a chemical reaction
a) physical change that evaporates
b) mixture that dissolves
c) formation of bubbles
d) breaking of a colored pencil

Evidence of a chemical reaction
a) fireworks exploding in the sky
b) fireworks laying on the ground
c) fireworks debris landing in the water
d) picking out your favorite firework show

Evidence of a chemical change
a) mixture
b) permanent color change
c) electrical charge
d) electron cloud

Chemical reaction
a) a physical change that mixes together
b) an electrical change that dissolves into a different substance
c) a positive charged element that reacts to form a negatively charged element
d) chemical change when two or more substances react to form a new substance

Precipitate..
a) bubbles in a chemical reaction
b) cloudy substance in a chemical reaction
c) mixture in a chemical reaction
d) rain, sleet or snow in a chemical reaction

Compound
a) NaCl
b) Cl
c) B
d) Ag

Element
a) NaSOH
b) P
c) CH
d) CO

Compound
a) Hg
b) NaSOH
c) Ga
d) Mg

Protons identify...
a) the neutrons
b) the nucleus
c) the element
d) the electron clouds

Elements on the periodic table are represented by
a) a symbol and first letter is capitalized
b) an electron cloud
c) a mass number and protons are included
d) a nucleus and the center contains protons

Compound
a) two or more capital letters
b) less than one capital letters
c) 2 or more protons
d) 2 or less protons

Element
a) more than one capital letter
b) more than one proton
c) one capital letter
d) less than one proton

Subscript
a) determine the number of molecules of the element
b) determine the number of atoms of the element
c) determine the number of protons of the element
d) determine the number of nuclei of the element

Coefficient
a) determine the number of protons in the compound
b) determine the number letters in the formula
c) determine the number of atoms of the element in the compound
d) determine the number of molecules of the compound

Subscript
a) little number in front of the element
b) little number following the element
c) big number following the element
d) big number in front of the element

Coefficient
a) big number in front of the compound or element
b) big number following the compound or element
c) little number in front of the compound or element
d) little number following the compound or element

Chemical formula
a) nuclear fusion
b) written expression of a compound using letters and symbols
c) symbols expressing the division of a nucleus
d) a form of an atom

Physical change
a) burning toast
b) creating french toast from old bread
c) spreading butter on toast
d) frying dough to make donuts

Reactant
a) the end or result of a chemical reaction; right side of the yield
b) the flow of a chemical reaction
c) the beginning of a chemical reaction; the left side of the yield
d) the middle of the chemical reaction; left side of the yield

Product
a) result or end of reaction; right side of yield
b) the middle of the reaction; right side of yield
c) the beginning of the reaction; right side of yield
d) the flow of the chemical reaction

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