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Study for my test coming, Cheat Sheet of Nursing

City University of New York (CUNY) - LaGuardia Community CollegeNursing

Study for my test coming up soon

Typology: Cheat Sheet

2024/2025

Uploaded on 04/11/2025

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SCC110 Practice Quiz – Chapters 1, 2, 3,
4, 7
1. Which of the following best defines chemistry?
A) The study of plants and animals
B) The study of matter and its changes
C) The study of celestial bodies
D) The study of forces and motion
Answer: B
2. Which of the following is an example of a pure substance?
A) Saltwater
B) Milk
C) Oxygen gas (O )₂
D) Air
Answer: C
3. Which of the following is a physical change?
A) Iron rusting
B) Burning wood
C) Boiling water
D) Cooking an egg
Answer: C
4. Which of the following is the SI unit for length?
A) Inch
B) Meter
C) Foot
D) Centimeter
Answer: B
5. How many significant figures are in 0.03040?
A) 2
B) 3
pf3
pf4
pf5

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SCC110 Practice Quiz – Chapters 1, 2, 3,

  1. Which of the following best defines chemistry?  A) The study of plants and animals  B) The study of matter and its changes  C) The study of celestial bodies  D) The study of forces and motion Answer: B
  2. Which of the following is an example of a pure substance?  A) Saltwater  B) Milk  C) Oxygen gas (O )₂  D) Air Answer: C
  3. Which of the following is a physical change?  A) Iron rusting  B) Burning wood  C) Boiling water  D) Cooking an egg Answer: C
  4. Which of the following is the SI unit for length?  A) Inch  B) Meter  C) Foot  D) Centimeter Answer: B
  5. How many significant figures are in 0.03040?  A) 2  B) 3

 C) 4

 D) 5

Answer: C

  1. Convert 45.0°C to Kelvin:  A) 273.0 K  B) 328.2 K  C) 318.2 K  D) 300.2 K Answer: C
  2. What is the density of an object with mass 120 g and volume 40.0 mL?  A) 3.0 g/mL  B) 0.33 g/mL  C) 80 g/mL  D) 160 g/mL Answer: A
  3. Which subatomic particle has a negative charge?  A) Proton  B) Neutron  C) Electron  D) Nucleus Answer: C
  4. What is the atomic number of an element equal to?  A) Number of electrons  B) Number of neutrons  C) Number of protons  D) Mass number Answer: C
  5. Isotopes of an element differ in the number of:  A) Protons  B) Neutrons  C) Electrons

Answer: A

  1. Ionic bonds are formed between:  A) Two metals  B) A metal and a nonmetal  C) Two nonmetals  D) Noble gases Answer: B
  2. Covalent bonds involve the:  A) Transfer of electrons  B) Sharing of electrons  C) Loss of protons  D) Gaining of neutrons Answer: B
  3. Which compound is covalent?  A) NaCl  B) MgO  C) CO₂  D) KBr Answer: C
  4. What type of reaction is: 2H ₂ + O ₂ → 2H O?₂  A) Decomposition  B) Single replacement  C) Synthesis  D) Combustion Answer: C
  5. In a balanced chemical equation, the total number of atoms of each element on both sides must be:  A) Equal  B) Greater on the product side  C) Greater on the reactant side  D) Double the original

Answer: A

  1. What are the products of a combustion reaction involving a hydrocarbon?  A) Carbon and hydrogen  B) CO ₂ and H O₂  C) CO and H₂  D) CH ₄ and O₂ Answer: B
  2. A reaction that releases energy to the surroundings is called:  A) Endothermic  B) Exothermic  C) Neutral  D) Catalytic Answer: B
  3. Which of the following is a sign of a chemical reaction?  A) Melting  B) Boiling  C) Color change  D) Evaporation Answer: C
  4. Balance this equation: _Fe + _O ₂ → _Fe O₂ ₃  A) 2Fe + O ₂ → Fe O₂ ₃  B) 4Fe + 3O ₂ → 2Fe O₂ ₃  C) 3Fe + 2O ₂ → Fe O₃ ₄  D) Fe + O ₂→ FeO Answer: B
  5. Which of the following is not a type of chemical reaction?  A) Synthesis  B) Decomposition  C) Evaporation  D) Single replacement Answer: C