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Year 11 ACT Chemistry practice questions
This public preview page identifies the planned Year 11 ACT Chemistry demo route and links it to curriculum coverage while the reviewed sample question set is being completed.
Sample-question focus
The planned public sample is for Year 11 ACT Chemistry practice and will open after the demo questions are reviewed.
Skills covered
Practice atomic structure, bonding, chemical reactions, stoichiometry, equilibrium, acids and bases, organic chemistry, analysis, and modelling.
Exercise and test mode
The route is public now; the exercise and test preview will become available after the curated question set is ready.
Curriculum link
Compare this demo with the ACT Year 11-12 Chemistry curriculum page to scan related topics, subtopics, and pathway coverage.
These sample questions are visible on the page before login. They show ACT BSSS Year 11 Chemistry particle models, bonding, stoichiometry, reaction profiles, rates, and acid-base data with diagrams, tables, curves, and spectra before opening the demo.
ACT BSSS Year 11ChemistryConservation of masshardparticle model
1. A sealed-flask particle model shows vinegar and bicarbonate reacting. Why does the total mass stay the same in the sealed flask?
Choices
No atoms leave the system.
Gas has no mass.
Atoms are created by fizzing.
The balance ignores products.
Explanation:
In a sealed system, atoms are rearranged but remain inside the flask.
ACT BSSS Year 11ChemistryAmountshardstoichiometry table
2. A stoichiometry table uses molar mass 44.0 g mol^-1 for carbon dioxide. How many moles are in 8.80 g CO2?
Choices
0.200 mol
5.00 mol
35.2 mol
44.0 mol
Explanation:
n = m / M = 8.80 / 44.0 = 0.200 mol.
ACT BSSS Year 11ChemistryPolarityhardbond-polarity diagram
3. A C=O bond diagram shows the dipole arrow toward oxygen. Which end is partially negative?
Choices
The oxygen end
The carbon end
Both ends are metals
Neither end has electrons
Explanation:
Oxygen is more electronegative than carbon, so electron density is greater near oxygen.
ACT BSSS Year 11ChemistryRateshardrate graph
4. A concentration-time graph drops fastest at the start of a reaction and then becomes flatter. What happens to the rate over time?
Choices
It decreases.
It becomes infinite.
It stays zero at first.
It is unrelated to concentration.
Explanation:
As reactants are used up, there are fewer frequent successful collisions, so the gradient becomes less steep.
ACT BSSS Year 11ChemistryCovalent moleculeshardLewis structure
5. A Lewis diagram for methane shows carbon bonded to four hydrogen atoms. How many single C-H bonds are shown?
Choices
Four
Two
One
Eight double bonds
Explanation:
Methane is CH4, so carbon forms four single covalent bonds to hydrogen.
ACT BSSS Year 11ChemistryAcid-base scalehardpH scale
6. A water sample is pH 7 on the diagram. Which description best matches pH 7 at 25 C?
Choices
Neutral
Strongly acidic
Strongly basic
A molecular ion
Explanation:
A pH of 7 is neutral for pure water at 25 C.
For parents comparing ACT BSSS Year 11 Chemistry support
ACT BSSS Year 11 Chemistry practice should help students connect chemical reasoning to visible evidence: particle models, bonding, stoichiometry, reaction profiles, rates, and acid-base data. These examples preview that visual reasoning before the no-login Chemistry demo.
This demo is in progress
In progress
Year 11 ACT Chemistry is available to purchase, and the public demo preview is still being prepared.
Students can use the purchased subject once subscribed; this anonymous preview will be opened after the curated public question set is ready.
Does this page include Year 11 ACT Chemistry practice questions?
Not yet. The Year 11 ACT Chemistry demo route is public, but the interactive sample questions will open after the reviewed public set is ready.
Can students try the demo without signing up?
No sign-up is required to view the preview status. The no-login interactive demo will be available after the sample set is completed.
How does this demo relate to curriculum coverage?
This demo is linked with the ACT Year 11-12 Chemistry curriculum coverage page, where parents can compare the broader topic and pathway structure used for Skill Align practice.
