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Science
Compounds Of Transitional Elements
Quiz 2
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Q.1
How many carbon atom/s are present in the compounds CaCO3?
1
2
3
4
Q.2
Is water an element or a compound?
Element
Compound
Q.3
Element is a
pure substance
compound
mixture
molecule
Q.4
Is salt (NaCI) a compound or a element
Compound
element
Q.5
Which one can be found on the periodic table
Compound
Element
Q.6
Which of the following represents an element?
H2O
H2
NaCl
CaCO3
Q.7
What is the formula for sulfur pentoxide?
SO2
SO3
SO4
SO5
Q.8
What is the formula for Sodium Nitrate? (refer to your polyatomic ions sheet)
NaN
NaN2
NaNO3
NaNO3
Q.9
What is the formula for Silicon dioxide?
SO
SO2
SiO
SiO2
Q.10
What is the name for MgH2?
Magnesium hydride
Magnesium dihydride
Monomagnesium hydride
Monomagnesium dihydride
Q.11
What is the name for CO?
Copper Oxide
Carbon monoxide
monocarbon oxide
Copper monoxide
Q.12
What is the formula for Lithium Iodide?
LiI
LiI2
LiI3
LiI4
Q.13
Rust & Tarnishing is ALWAYS and example of a chemical change/reaction?
True
False
Q.14
Which combination of letters could be used as a chemical symbol for an element?
BR
Chl
Dy
FeO
Q.15
How many Capital or Uppercase letters can one element have?
5
1
3
2
Q.16
CO2 , + H2O, + C6H12O+ O2Which of the following is a Compound?
Oxygen
Hydrogen
Water
Carbon
Q.17
What is a chemical property associated with wood?
ability to burn
snapping when bent
floating on water
having a rough surface
Q.18
CaCO3 heat CaO + CO2 The products above are best classified as -
two elements
one element and one compound
two compounds
two compounds and one element
Q.19
Carbon (C) is considered an element while Carbon Dioxide (COis considered a compound. That is because Carbon Dioxide is -
a gas
made of two elements
given off by plants
useful to us
Q.20
Which of the following is NOT evidence of a chemical reaction?
bubbling and fizzing
a precipitate forming
a phase change from a solid to a liquid
temperature change
0 h : 0 m : 1 s
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