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Dive into the fascinating world of chemistry with this collection of practice CRCT questions. Explore the concepts of neutrons in sulfur atoms, mass numbers, and the properties of substances like water, citric acid, and the changes they undergo. Each question encourages critical thinking about the distinction between physical and chemical properties, the identity of substances, and phases of matter. Perfect for students preparing for the CRCT, these questions help reinforce key chemistry concepts while encouraging a deeper understanding of material properties and changes.
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Warm Up01/22 Practice CRCT Question: Calculate how many neutrons 2 atoms of sulfur contain.
Closing01/22 Practice CRCT Question From the picture, which number is the mass number and what does it measure?
Warm Up01/23 Practice CRCT Question Water is H2O before freezing into ice. In the ice phase, water’s chemical formula is still H2O. What kind of property is this? physical property chemical property mass property expensive property
Closing01/23 Practice CRCT Question Oranges, lemons, and limes are considered to be acidic because they contain citric acid. What type of property is this? a. physical property b. chemical property c. mass property d. expensive property
Warm Up01/24 Practice CRCT Question What does the picture BEST represent? A. an atom B. a compound C. a pure substance D. a mixture
Closing01/24 Practice CRCT Question What does the picture BEST represent? A. an atom B. a compound C. a pure substance D. a mixture
Warm Up01/25 Practice CRCT Question A piece of ice melting is an example of which type of change? physical change chemical change phase change only
Closing01/25 Practice CRCT Question: Which is the BEST example of a chemical change? acid in lemons malleability of aluminum the rusting of iron the boiling of water