SCIENCE 9-MODULE 7 QUIZ | Quizalize

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SCIENCE 9-MODULE 7 QUIZ

Quiz by GEMMA F. VALDEZ

Grade 9

Science

Philippines Curriculum: Grades K-10 (MELC)

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Measures 1 skill from
Grade 9
Science
Philippines Curriculum: Grades K-10 (MELC)

S9MT-IIj-20

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Q 1/9
Score 0
What is the symbol of an element Nitrogen?
29

Ni
O
N
C

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9 questions

Show answers

Q1
What is the symbol of an element Nitrogen?
Ni
O
N
C
15s
S9MT-IIj-20
Q2
Who among the following scientists proposed a scientific law we now call the law of definite proportion?
John Dalton
Joseph Thomson
Antoine Lavoisier
Joseph Proust
20s
Q3
The percentage composition of a compound can be determined from its ________.
Electron Configuration
Valence Electrons
Atomic Number
Chemical Formula
20s
Q4
The molecular formula of Serine is C₃H₇NO₃. How many atoms of hydrogen are present in this organic compound?
7
10
3
13
20s
Q5
The total molecular mass of alumina hydroxide, Al(OH)₃, is 78.01 g/mole. How many atoms are present in oxygen?
1
3
2
4
20s