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D425 - INTO TO CHEMISTRY OBJECTIVE ASSESSMENT UPDATED 2025/2026 COMPLETE QUESTIONS AND VERIFIED CORRECT ALREADY GRADED SOLUTIONS || 100% GUARANTEED PASS LATEST VERSION

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D425 - INTO TO CHEMISTRY OBJECTIVE ASSESSMENT UPDATED 2025/2026 COMPLETE QUESTIONS AND VERIFIED CORRECT ALREADY GRADED SOLUTIONS || 100% GUARANTEED PASS LATEST VERSION 1. Chemistry - ANSWER the study of matter and its interactions 2. What is a gas? - ANSWER A state of matter with no definite shape or volume 3. what is a chemical bond? - ANSWER 2 or more nonmetal atoms held together by force. 4. What is a monoatomic element? - ANSWER single atom 5. what is an example of monoatomic molecule? - ANSWER helium 6. What is a diatomic molecule? - ANSWER a molecule that contains two atoms 7. what is an example of diatomic molecule? - ANSWER Hydrogen, Nitrogen, Oxygen 8. What is a polyatomic molecule? - ANSWER molecule made up of 3 or more atoms 9. what is a example of polyatomic molecule? - ANSWER Sulfur, phosphorus 10. what is a chemical formula? - ANSWER a combination of symbols that shows the ratio of elements in a compound 11. what are the 2 types of chemical formulas? - ANSWER molecular, empirical 12. What is a molecular formula? - ANSWER A molecular formula is the actual number of atoms of each element in a molecule, 13. Is an ionic compound written as a molecular formula? T or F - ANSWER False 14. What is the empirical formula? - ANSWER The simplest whole number ratio of atoms of each element in a compound 15. What is a structural formula? - ANSWER The bonding arrangement of the atoms in the molecule. 16. What are the substances that go into a reaction called? - ANSWER Reactants. 17. What is the law of conservation of mass? - ANSWER In a chemical reaction, mass is neither created nor destroyed. 18. What are the four types of chemical reactions? - ANSWER Synthesis, decomposition, single replacement, and double replacement. 19. What happens in a synthesis reaction? - ANSWER Elements or compounds combine to form a single new substance. 20. What is a mole ratio? - ANSWER A conversion factor between compounds in a chemical reaction. 21. What does a theoretical yield represent? - ANSWER The amount of product calculated assuming complete conversion of the limiting reagent. 22. How is percent yield calculated? - ANSWER By evaluating the effectiveness of a reaction when a mixture of products is produced or it does not go to completion. 23. What is the role of coefficients in a balanced chemical equation? - ANSWER They represent the number of molecules or moles of each substance involved in the reaction. 24. What is energy? - ANSWER the ability to do work 25. What is heat? - ANSWER The energy transferred between objects that are at different temperatures 26. What is work? - ANSWER Force (any push or pull) applied over distances 27. What is kinetic energy? - ANSWER energy of motion 28. What determines the amount of kinetic energy? - ANSWER Mass and velocity 29. What is potential energy? - ANSWER energy that is stored 30. What is a example of potential energy? - ANSWER a car that is standing still

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D425 - INTO TO CHEMISTRY
OBJECTIVE ASSESSMENT UPDATED
2025/2026 COMPLETE QUESTIONS
AND VERIFIED CORRECT ALREADY
GRADED SOLUTIONS || 100%
GUARANTEED PASS <<LATEST
VERSION>>
1. Chemistry - ANSWER ✓ the study of matter and its interactions

2. What is a gas? - ANSWER ✓ A state of matter with no definite
shape or volume

3. what is a chemical bond? - ANSWER ✓ 2 or more nonmetal atoms
held together by force.

4. What is a monoatomic element? - ANSWER ✓ single atom

5. what is an example of monoatomic molecule? - ANSWER ✓
helium

6. What is a diatomic molecule? - ANSWER ✓ a molecule that
contains two atoms

7. what is an example of diatomic molecule? - ANSWER ✓
Hydrogen, Nitrogen, Oxygen

, 8. What is a polyatomic molecule? - ANSWER ✓ molecule made up
of 3 or more atoms

9. what is a example of polyatomic molecule? - ANSWER ✓ Sulfur,
phosphorus

10. what is a chemical formula? - ANSWER ✓ a combination of
symbols that shows the ratio of elements in a compound

11. what are the 2 types of chemical formulas? - ANSWER ✓
molecular, empirical

12. What is a molecular formula? - ANSWER ✓ A molecular
formula is the actual number of atoms of each element in a
molecule,

13. Is an ionic compound written as a molecular formula? T or F
- ANSWER ✓ False

14. What is the empirical formula? - ANSWER ✓ The simplest
whole number ratio of atoms of each element in a compound

15. What is a structural formula? - ANSWER ✓ The bonding
arrangement of the atoms in the molecule.

16. What are the substances that go into a reaction called? -
ANSWER ✓ Reactants.

17. What is the law of conservation of mass? - ANSWER ✓ In a
chemical reaction, mass is neither created nor destroyed.

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