Science: Question Preview (ID: 1590)


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Which of the following is an example of a solution?
a) salt mixed with sand b) oil mixed with water c) citric acid mixed with oil d) citric acid mixed with water
Which of the following is the solute in a solution of salt water?
a) Water b) Salt c) Salt water d) Water Salt
Which is the difference between a mixture that is a solution and a mixture that is not a solution?
a) There is no difference b) Mixtures that are not solutions dissolve compared to mixtures that are solutions which do not dissolve c) Solutions dissolve compared to mixtures that are not solutions which do not dissolve d) We can drink solutions, we can not drink mixtures.
What is the scientific difference between solutions with different concentrations?
a) Solutions that are more concentrated have more solute than solutions that are less concentrated b) Solutions that are less concentrated have more solute than solutions that are more concentrated c) The solute and solvent reacted more in a concentrated solution than in a less concentrated solution d) There is no difference
Which of the following is a chemical change?
a) An iron nail slowing changing into a new substance known as rust b) Salt dissolving in water c) Citric Acid dissolving in water d) Seperating iron filings from sand by using a magnet
Which of the following is a physical change?
a) Burning paper which makes ashes b) Alka-Seltzer mixing with water c) Mixing baking soda and vinegar to make carbon dioxide, water and salt d) A bowl falling and breaking into many pieces
What are the reactants in a reaction between baking soda and vinegar which produces carbon dioxide, water and salt?
a) The mixture fizzes and releases a gas b) Carbon Dioxide, water and salt c) Baking soda and vinegar d) Vinegar
Which of the following are the products in the chemical reaction between Alka-Seltzer and water which then makes carbon dioxide, water, and salt?
a) Carbon dioxide and water b) Alka- Seltzer and water c) Carbon dioxide, water and salt d) The solution fizzes and releases a gas
Our world needs to build cleaner factories because...
a) We need our air to be less concentrated with carbon dioxide b) They will look nicer c) The factories will have to spend less time seperating mixtures d) Triethyeneglycolase is bad for our environment
One place where mixtures are COMMONLY seperated would be at a...
a) classroom b) baseball game c) gym class d) farm
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