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Grade 9

1. The document is a science exam from Mayor Praxedes P. Villanueva II Memorial High School in Bais City, Philippines. 2. The exam contains 32 multiple choice questions testing knowledge of science topics like chemical bonding, molecules, moles, and organic compounds. 3. The exam was prepared by a science teacher, quality assured by another staff member, and noted by the head teacher of the school.

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knutche
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67 views3 pages

Grade 9

1. The document is a science exam from Mayor Praxedes P. Villanueva II Memorial High School in Bais City, Philippines. 2. The exam contains 32 multiple choice questions testing knowledge of science topics like chemical bonding, molecules, moles, and organic compounds. 3. The exam was prepared by a science teacher, quality assured by another staff member, and noted by the head teacher of the school.

Uploaded by

knutche
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as DOCX, PDF, TXT or read online on Scribd
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Republic of the Philippines

Department of Education
REGION VII – CENTRAL VISAYAS
DIVISION OF BAIS CITY
Mayor Praxedes P. Villanueva II Memorial High School
TAMISU , BAIS CITY

NAME: _________________________________ DATE: _______________


GRADE & SECTION: ____________ SCORE:______________

(2ND Quarter Examination)


Science 9

Direction: Encircle the letter of the correct answer


c. Hydrocarbon
d. Nucleic Acid
1. It is a form of organic compound
with many atoms. 8. Based molecules that have three
a. Hydrogen c. Carbon fundamental structure.
b. Lithium d. Oxygen a. Carbon c. Hydrogen
b. Oxygen d. Carbon Dioxide
2. Is a behavior exhibit by certain
chemical elements and can exist
into two or more. 9. It uses as cellular structure, it
a. Lewis Dot Symbol controls the substances in and out
b. Allotropy of cell, it also fight for diseases.
c. Carbon Compound a. Carbohydrates
d. Hydro Carbon b. Proteins
c. Fats
3. Are molecules in our cells that direct d. Iron
and store information for
reproduction and cellular growth. 10. According to rule, electron
a. Hydrocarbon must have 8 valence electron to
b. Allotropy become stable.
c. Nucleic Acid a. Triple Rule
d. Ribonucleic Acid b. Octet Rule
c. Quadruple Rule
4. It is the fundamental unit used to d. Avogadro’s Rule
measure the amount of substance.
a. Molecules c. Moles Enumeration
b. Kilogram d. Mass 11-18. What are the 8 allotropes in
chemical bonding?
5. It is also the atomic or formula mass
of a substance expressed in grams.
a. Molecules c. Moles
b. Kilogram d. Mass

6. Are organic compounds which


contains carbon and hydrogen only.
a. Hydrogen c. Carbon Solve the following
b. Hydrocarbon d. Hydrogen 19-23. How many molecules are there in
Oxide 8.0 moles of CO2?

7. It is a model that describe the


possibility of placing electrons
within an atom by describing the
principal energy level.
a. Lewis Symbol
b. Quantum Mechanical Model
24-28. Calculate the mass of 3 moles of
methane.

29-32. How many moles are in 3.45 x1024


atoms of silicon?

Prepared by; Quality Assured by;

KNUTCHEN B. JALUAG AIKO A. JUAY


Science Teacher Q.A. Member

Noted by;

MARIA THERESA C. FUENTES


Head Teacher I
Republic of the Philippines
Department of Education
REGION VII – CENTRAL VISAYAS
DIVISION OF BAIS CITY
Mayor Praxedes P. Villanueva II Memorial High School
TAMISU , BAIS CITY

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