There are three naturally occurring isotopes of the hypothetical element hilarium 45hi, 46hi, and 48hi. the percentages of these isotopes are the following: hilarium natural isotopes abundance 45hi 18.3% 46hi 34.5% 48hi 47.2% you can assume that the atomic masses are exactly equal to the mass number. calculate the weight of "naturally" occurring hilarium and report it as you would for any other naturally occurring element. answer in units of g/mol. your answer must be within ± 0.005%

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

Explain in detail of the four major scientific developments that spurred the formulation of the plate tectonics theory

How many moles of no2 will form when 3.3 moles of cu are reacted with excess hno3?