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1 Topic C - Chemistry # 1 Topic C - Chemistry # 2 Which particle is NOT found in the nucleus of an atom? A. Proton B. Neutron C. Electron What is the process of a liquid changing to a gas (such as water to steam)? A. Evaporation B. Condensation Topic C - Chemistry # 3 Topic C - Chemistry # 4 Is H2O the chemical formula for water, ice, or both water and ice? A. Water B. Ice C. Both water and ice How many millimeters are in 1 meter? A. 10 mm B. 100 mm C mm Topic C - Chemistry # 5 Topic C - Chemistry # 6 Which of the following is most likely the temperature on a hot summer day? A. 30 o Celsius B. 60 o Celsius or C. 90 o Celsius What percent of all elements are metals? A. 25% B. 50% C. 75%
2 Topic C - Chemistry # 7 Topic C - Chemistry # 8 Is helium lighter or heavier than air? A. Lighter or B. Heavier How many meters are in 1 kilometer? A. 100 meters B. 1,000 meters C. 10,000 meters Topic C - Chemistry # 9 Topic C - Chemistry # 10 Ice melts into water. Is this a physical change or a chemical change? A. Physical OR B. Chemical An oxide is formed when an element combines with a specific element. Which one is it? A. Carbon B. Oxygen C. Hydrogen D. Argon Topic C - Chemistry # 11 Topic C - Chemistry # 12 What is the amount of matter in a volleyball? A. Volume B. Mass C. Weight Which of the following does not belong? A. Meter B. Liter C. Mile D. Gram
3 Topic C - Chemistry # 13 Topic C - Chemistry # 14 Which state of matter has neither a definite shape nor a definite volume? A. Solid B. Liquid C. Gas Would a strong acid have a ph closer to A. 1, B. 7, OR C. 14? Topic C - Chemistry # 15 Topic C - Chemistry # 16 Which metric unit is used to measure an object s mass? A. Liters B. Meters C. Grams What do we call the amount of space a car takes up? A. Mass B. Volume C. Weight Topic C - Chemistry # 17 Topic C - Chemistry # 18 Water is considered a neutral compound. Does it have a ph number of A. 0, B. 7, or C. 14? Helium s atomic number is 2. How many protons does an atom of helium contain? A. One B. Two C. Four
4 Topic C - Chemistry # 19 Topic C - Chemistry # 20 Sodium has an atomic number of 11 and an atomic mass of 23. How many electrons does it have? A. 11 B. 12 C. 23 Which element has an atomic number of 8? A. Nitrogen B. Hydrogen C. Oxygen Topic C - Chemistry # 21 Topic C - Chemistry # 22 Which gas makes up 78% of the air in our atmosphere? A. Hydrogen B. Oxygen C. Nitrogen D. Argon Which element has an atomic number of 1? A. He B. H C. Li D. O Topic C - Chemistry # 23 Topic C - Chemistry # 24 Aluminum has an atomic number of 13 and an atomic mass of 27. How many neutrons does it have? A. 13 B. 14 C. 27 Which of the following instruments is used to measure mass? A. Triple-beam balance B. Graduated cylinder C. Meter stick
5 Topic C - Chemistry # 25 Topic C - Chemistry # 26 Does air become heavier or lighter as its temperature rises? A. Heavier OR B. Lighter Which of the following is not a noble gas? A. Helium B. Neon C. Oxygen Topic C - Chemistry # 27 Topic C - Chemistry # 28 What do we call atoms of the same element that have the same number of protons, but different numbers of neutrons? A. Compounds B. Ions C. Isotopes In a solution, one substance is dissolved in another. What is the term used to describe the substance that is dissolved? A. Solvent B. Solute Topic C - Chemistry # 29 Topic C - Chemistry # 30 What do we call the process of a solid changing to a liquid? A. Freezing B. Melting C. Boiling If an object has a density of 1.3 g/ml, will it sink or float in water? A. Float B. Sink
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Name: 1) Which molecule is nonpolar and has a symmetrical shape? A) NH3 B) H2O C) HCl D) CH4 7222-1 - Page 1 2) When ammonium chloride crystals are dissolved in water, the temperature of the water decreases.