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FREE PHYSICAL SCIENCE AND STUDY GAMES ABOUT
SOLARI--MATTER EXAM QUESTIONS
Actual Qs and Ans Expert-Verified Explanation
This Exam contains:
-Guarantee passing score -34 Questions and Answers -format set of multiple-choice -Expert-Verified Explanation Question 1: is a combination of chemical symbols usually used to represent a compound.
Answer:
CHEMICAL FORMULA
Question 2: This is composed of two or more substances mixed together but not chemically combined.
Answer:
MIXTURE
Question 3: whipped cream, glue and chocolate milk are all examples of which kind of mixture?
Answer:
HOMOGENEOUS
Question 4: __are two or more elements that have been chemically combined
Answer:
COMPOUNDS
Question 5: If a substance cannot dissolve in water it is ___
Answer:
INSOLUBLE
Question 6: In a solution, the substance that is dissolved into the other substance is the __
Answer:
SOLUTE
Question 7: How many atoms are in the following molecule of silicon dioxide (SiO2)
Answer:
3
Question 8: In a solution of chocolate milk, identify the solute and solvent
Answer:
milk is solvent and chocolate powder is solute Question 9: When you combine substances into a mixture, do they usually keep their own properties?
Answer:
YES, most properties stay the same
Question 10: In a solution of chocolate milk, what is the solute? solvent?
Answer:
chocolate syrup/powder is the solute. Milk is the solvent.
Question 11: Identify the elements in NaCl.
Answer:
sodium (Na) and Chlorine (Cl)
Question 12: If a substance can be dissolved in water, it is ___
Answer:
SOLUBLE
Question 13: How many elements are in the compound CuSO4? How many atoms are in
CuSO4?
Answer:
- elements, 6 atoms
Question 14: Describe how you could separate a mixture of salt water.
Answer:
evaporate the water and the salt remains behind in original container
Question 15: which type of matter can be broken down by physical means?
Answer:
MIXTURES
Question 16: a mixture that appears to be the same throughout
Answer:
HOMOGENEOUS MIXTURE
Question 17: Classify each of the following as an element, mixture or compound:
- Copper Sulfate (CuSO4),
- Ocean water,
- Helium,
- Kool-Aid Drink,
- Calcium
Answer:
- compound
- mixture
- element
- mixture
- element
Question 18: Which type of matter can be broken down chemically?
Answer:
COMPOUNDS
Question 19: How many atoms of Oxygen are in copper sulfate (CuSO4)?
Answer:
- atoms of oxygen
Question 20: This is a shorthand way of representing an element
Answer:
CHEMICAL SYMBOL
Question 21: In a solution, the substance doing the dissolving is the __
Answer:
SOLVENT
Question 22: (Name 3 factors that effect the solubility of a substance.
Answer:
- temperature of solvent,
- stirring rate of soluton,
- surface area of solute (size of solute crystal/crushing of crystal)
Question 23: Which is not a pure substance: salt, iron, sugar water? Explain your choice
Answer:
sugar water--it's a mixture of 2 compounds Question 24: Does the ratio (amount) of components in a mixture need to remain fixed or can it change? Explain
Answer:
The ratio of components in a mixture do not need to remain fixed. Mixtures can have varying amounts of ingredients and still be a mixture containing those components.
Question 25: a mixture that does not appear to be the same throughout.
Answer:
HETEROGENEOUS MIXTURE
Question 26: taco salad, granite and italian dressing are all examples of which type of mixture
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