chemistry on a go

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Across
  1. 2. is a pure substance formed when two or more different elements are chemically combined in a fixed ratio.
  2. 4. is the amount of matter in an object.
  3. 6. is the force of attraction that holds atoms together in a molecule or compound
  4. 9. is defined as a group of two or more atoms that are held together by chemical bonds
  5. 10. is made of one atom and are shown on the periodic table.
  6. 12. is a material composed of two or more substances that are physically combined, but not chemically bonded
  7. 14. capacity to do work
  8. 15. material substance that makes up the universe along with energy.
  9. 16. Chemistry is the branch of science that deals with the properties, composition, and structure of elements and compounds, how they can change
Down
  1. 1. is defined as a measure of the average kinetic energy of the particles
  2. 3. is a chemical process that absorbs heat from its surroundings.
  3. 5. is the basic building blocks of all matter made up of quarks.
  4. 7. is defined as the transfer of thermal energy from one object to another due to a temperature difference
  5. 8. is a process where substances, called reactants, interact and transform into new substances, called products
  6. 11. is a chemical process that exerts heat out
  7. 13. is a substance that participates in a chemical reaction and undergoes a change during the reaction