Quizalize logo
placeholder image to represent content

Review Questions for Quarter 2

Quiz by SCIENCE9_TCNCHS

Grade 9
Science
Philippines Curriculum: Grades K-10 (MELC)

Feel free to use or edit a copy

includes Teacher and Student dashboards

Track each student's skills and progress in your Mastery dashboards

With a free account, teachers can
  • edit the questions
  • save a copy for later
  • start a class game
  • automatically assign follow-up activities based on students’ scores
  • assign as homework
  • share a link with colleagues
  • print as a bubble sheet

Our brand new solo games combine with your quiz, on the same screen

Correct quiz answers unlock more play!

New Quizalize solo game modes
10 questions
Show answers
  • Q1

    When an atom loses electrons, it becomes positively charged. What do you call the type of ion that is formed when an atom loses electrons?

    Users enter free text
    Type an Answer
    60s
    S9MT-IIe-f-16
  • Q2

    Formaldehyde (CH2O) is utilized in preserving organic materials such as animal specimens and embalming human cadavers. What class of organic compounds does formaldehyde belong to?

    Aldehydes

    Propanone

    Alkenes

    Alcohol

    60s
  • Q3

    What is the percentage of oxygen in carbon dioxide, CO2? (Atomic mass of C = 12.01 amu, atomic mass of O = 16.00 amu). Answer should be reported with 2 decimal places.

    Users enter free text
    Type an Answer
    120s
  • Q4

    Which of the following structural formula of compounds is an example of the functional group alcohols?

    CH3−CHO

    CH3− NH2

    CH3−COOH

    CH3−CH2− OH

    60s
  • Q5

    The percentage by mass of each element in a compound can be derived from its chemical formula. What is the general formula for the computation of percentage composition of the given element?

    % mass of element = mass of element in the compound divided by mass of the compound

    mass of element = mass of element in the compound

    d. % mass of element = mass of element in the compound divided by mass of the compound times 100

    % mass of element = mass of element in the compound divided by 100

    60s
  • Q6

     In a chemistry class, you learn that the molar mass of water (H₂O) is 18 g/mol. If you have 2 moles of water, what is the total mass? Please indicate the unit in grams.

    Users enter free text
    Type an Answer
    120s
  • Q7

    The mole is a basic unit in chemistry used to count particles like atoms and molecules. What does one mole of any substance represent?

    6.02 x 10 ^ 23 units of a substance

    1.50 L of any substance

    50 tons of molecules of a substance

    12.01 g of Carbon atoms

    60s
  • Q8

    Carbon, a non-metallic element with atomic number 6, is unique due to its ability to form stable chemical bonds with various elements. What is the maximum number of bonds a carbon atom can form? (Note: answer should be a number)

    Users enter free text
    Type an Answer
    60s
  • Q9

    Understanding the capacity of each subshell is crucial for determining the electron configuration of elements. What is the maximum number of electrons that can occupy a d subshell? (Note: Answer should be a number only)

    Users enter free text
    Type an Answer
    45s
  • Q10

    What type of bond is formed between carbon atoms in a molecule of ethyne (C₂H₂)? (Note: Answer in ALL CAPS/ CAPITAL LETTERS)

    Users enter free text
    Type an Answer
    60s

Teachers give this quiz to your class