Match each vocabulary word with its definition. Match the items in the left column to the items in the right column. 1. The amount of heat released or absorbed by a reaction heat of reaction 2. The change in enthalpy (heat content) that occurs in the process of converting reactants to products in a chemical reaction specific heat 3. a reaction which absorbs heat from the surrounding space exothermic reaction 4. a reaction which gives up heat to the surrounding space endothermic reaction 5. the amount of heat required to raise the temperature of one gram of a given substance by one degree Celsius enthalpy of reaction

Word equation for k(s)+h2o(l) yield koh(aq) + h2(g)

Is a measure of the resistance to flow. a high liquid has a high resistance to flow and flows slowly. the ancients thought everything in the world was made of 4 we now know that there are 94 naturally occurring and scientists have created another 24 i am certain they will create even more. honey flows slowly because it has a high to flowing. a can be separated by physical means because it contains more than one pure substance and 2 pure substances are not chemically bonded to each other. a cannot be separated by physical means. all matter is made up of all elements are with the same number of protons. if it is just a single or many bonded together, if all of them have the same number of protons, it is an element. in a piece of pure iron metal, all the are joined together, that piece of iron metal is called elemental iron. a single of iron is called elemental iron. a mixture has differences from place to place. we might need a microscope to see them or they might be obvious to the unaided eye. there are surfaces separating it into different phases. a mixture is the same everywhere. it is uniform. there are no surfaces separating it into different phases. if different kinds of atoms (different elements) are bonded together by their electrons, it is called a there are physical means of to isolate the different pure substances in a mixture and there are chemical means of to isolate the different elements in a compound. 1. element 2. compound 3. mixture 4. heterogeneous 5. homogeneous 6. pure substance 7. atoms 8. separation 9. viscosity 10. resistance

Which rate indicates the number of children that would be born per woman if she were to live to the end of her child bearing years