Q3 Science Exam 7th 22-23 Part 1

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Across
  1. 2. star is this phase of matter
  2. 5. There are ____ states of matter
  3. 7. A homogenous solution means that the solution is the same throughout. ( right/wrong)
  4. 9. A solution which is so concentrated that it cannot dissolve any more of the solute is called _________.
  5. 15. Combustion, rusting of iron, spoiling of food are examples for which reaction?
  6. 17. Element symbol has a number above it,which is the ___ of that element.
  7. 18. Solid state of matter of water
  8. 20. The process by which green plants make their own food using sunlight, carbondioxide and water to produce glucose and oxygen
  9. 22. In a solution, solvent is of _______ quantity.( lesser/greater)
Down
  1. 1. oxygen is this phase of matter
  2. 3. What is made up of two or more different substances which are mixed but are not combined chemically
  3. 4. The 18th group of elements
  4. 6. tea is this state of matter
  5. 8. vertical column of the periodic table
  6. 10. How many grams of sugar are needed to make a 10% sugar water solution if you have 100 mL of water?
  7. 11. A ___________ solution has a large amount of solute dissolved in it.
  8. 12. The substance in which the solute dissolves is called the ________.
  9. 13. What is an example for mixture?
  10. 14. How many diatomic elements are there?
  11. 16. oil and water is an example for _____ liquid.
  12. 19. How many electronic shells are there for an element with 23 as atomic number?
  13. 21. In solutions, the substance that dissolves is called the ______.