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Questions and Answers
What is the definition of chemistry?
What is the definition of chemistry?
- The study of atoms and their interactions with other atoms (correct)
- The study of plants and animals
- The study of weather patterns
- The study of rocks and minerals
What is the main characteristic of a solid state of matter?
What is the main characteristic of a solid state of matter?
- Easily compressed to occupy a smaller volume
- Definite volume, definite shape, and is rigid (correct)
- No distinct volume or shape
- Definite volume but no definite shape
What differentiates plasma from gases?
What differentiates plasma from gases?
- It has a definite shape and volume
- It does not respond to electromagnetic forces
- It produces magnetic fields and electric currents (correct)
- It is easily compressed to occupy a smaller volume
Which type of property describes a substance's ability to change into a new substance with different properties?
Which type of property describes a substance's ability to change into a new substance with different properties?
What category of properties do not depend on the amount of matter present?
What category of properties do not depend on the amount of matter present?
Which subatomic particle is responsible for the dense, central, positively charged nucleus in an atom?
Which subatomic particle is responsible for the dense, central, positively charged nucleus in an atom?
In a V/V% solution, what does V/V% represent?
In a V/V% solution, what does V/V% represent?
For a solution with 100ppm NaCl, how many grams of NaCl are required for the preparation of 100ml of solution?
For a solution with 100ppm NaCl, how many grams of NaCl are required for the preparation of 100ml of solution?
What is the concentration in mg/dL for a solution with 3mg/ml of a substance?
What is the concentration in mg/dL for a solution with 3mg/ml of a substance?
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