Across
- 1. created the atomic theory
- 3. a device that is used to measure the energy absorbed or released when a chemical reaction takes place
- 5. Taste sour, pH level is less then 7, Aqueous Solutions that conduct Electrticy and can react with some metals to produce gas are properties of ____
- 6. created the planetary model of atoms and said the electron orbits the nucleus
- 9. Being a conductor, ductile and lustruoius are properties of ___________
- 11. the effusion rate for a gas inversely proportional to the square root to its molar mass
- 12. the closeness of a measured value to a standard value
- 14. a volume of a gas at constant pressure is directly proportional to the Kelvin temperature
- 15. is the changthe er of heat of the substance from the reactants
- 16. discovered electrons by using a cathode ray tube
- 17. Being dull, an insulator, a non-conductor, and brittle are properties of _______
- 18. discovered the nucleus by taking gold foil and hit it with Alpha particles
Down
- 1. Heat is measured in ____
- 2. the study of heat that is converted to and from other forms of energy
- 4. Tastes bitter, feels slippery, pH level is higher than 7, litmusns limtus paper blue are all properties of ____
- 7. the volume of a becomes inversely proportional to the pressure when the temperature is being held constant
- 8. this law states that the enthalpy change for a reaction is carried out in many steps that becmose equal to the sum of the enthalpy change for each individual step.
- 10. a substance that increases the concentration of hydrogen ions in aqueous solutions
- 13. The closeness of two or more measurements to each other
- 14. a substance that can speed up chemical reactions without going under any chemical change. This is done through the use of lowering the activation energy.
