
Evaluation
Quiz by CYRELL NICOLE LACANILAO
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- Q1
Element is any substance composed of identical molecules consisting of atoms of two or more chemical elements.
falsetrueTrue or False10s - Q2
The groups in periodic table of elements is the horizontal row of the periodic table
falsetrueTrue or False10s - Q3
Compounds are represented by their chemical formula.
truefalseTrue or False10s - Q4
The7th element in the periodic table is Oxygen (O).
falsetrueTrue or False10s - Q5
Elements are the fundamental materials of which all matter is composed.
truefalseTrue or False10s - Q6
What is the chemical formula of baking soda?
Na₂CO₃
NaCl
NaHCO₃
10s - Q7
Water is an example of
Compound
Element
Mixture
10s - Q8
Air is an example of
Compound
Mixture
Element
10s - Q9
Gold is represented by the symbol
au
Ua
Au
10s - Q10
Which of the following chemical formulas represents a compound?
C3
O2
CH3CHO
10s