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AS Level Chemistry AQA Paper 1 / Score 100% / 2025 Update / Comprehensive Exam Questions, Mark Scheme & Revision Guide

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Prepare for AS Level Chemistry AQA Paper 1 with this 2025 updated comprehensive exam review. Includes structured and multiple-choice questions, calculation practice, detailed mark scheme guidance, and exam-focused revision notes. Designed to help students score 100% on AQA AS Chemistry Paper 1 exams, quizzes, and assessments.

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AS LEVEL CHEMISTRY AQA PAPER 1 Exam comprehensive questions | FRE-
QUENTLY MOST TESTED QUESTIONS AND VERIFIED SOLUTIONS/GET IT
100% ACCURATE!! 2025 !!
Study online at https://quizlet.com/_i6uf06

1. What are the relative charges Proton +1, Neutron 0, Electron -1
of protons, neutrons, and elec-
trons?

2. Define isotope. Atoms of the same element with the same number of pro-
tons but different numbers of neutrons.

3. What does the mass number rep- Total number of protons and neutrons.
resent?

4. What is the principle behind TOF Ions are accelerated and separated by their
mass spectrometry? mass-to-charge ratio.

5. What is the trend in ionisation en- Increases due to increasing nuclear charge and similar
ergy across a period? shielding.

6. Define mole. The amount of substance that contains 6.022 × 10²³ parti-
cles.

7. Formula for moles using mass? Moles = Mass / Molar Mass

8. Formula for moles in solution? Moles = Concentration × Volume (in dm³)

9. What is the molar gas volume at 24 dm³/mol
RTP?

10. What is atom economy? (Molar mass of desired product / Total molar mass of all
products) × 100

11. What are the three main types of Ionic, covalent, metallic
bonding?


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