Chemistry, 05.07.2019 14:30 yyyyyyyyy9462
Me with atoms and dalton i beg you which of the following statements is false about dalton's atomic theory? 1. scientists later improved parts of dalton's atomic theory. 2. parts of the theory are no longer accepted as correct. 3. it was the first theory to propose that matter was made of tiny indestructible pieces of matter. 4. it was based on experimental evidence provided from leading scientists of that time. i think that the answer is either 3, because wouldn't democritus be the first person to propose tiny indestructible pieces of matter? or 4, because i don't think there were machines available to be able to test his theory with experiments. !
Answers: 1
Chemistry, 22.06.2019 02:30
Which compound contains both ionic and covalent bonds? a) hbr b)cbr4 c)nabr d) naoh
Answers: 2
Chemistry, 22.06.2019 06:00
How many atoms of mg are present in 97.22 grams of mg? 6.022 × 1023 2.408 × 1024 4.818 × 1024 5.855 × 1025
Answers: 2
Chemistry, 22.06.2019 07:30
The scheme below is from a series of reactions that are part of a synthesis of vitamin a. answer the following questions with reference to this scheme. (i) what is "reagent a"? (ii) draw a step-by-step mechanism which explains the formation of compound c from compound b (iii) which reagents would you use to form compound e from compounds c and d (reagents b and c)? for each reagent suggested above in (ii) explain the role of the reagent in the reaction to (iv) form compound e. you may wish to do this by drawing a mechanism. 1. addition of reagent a но reagent a 2. н,о" thо oh нон-с compound a. compound b. compound c .ch-оh 1. reagent b "сно 2. reagent c сh oh compound e. compound d.
Answers: 2
Chemistry, 22.06.2019 08:40
Ageologist determines that a sample of a mineral can't be scratched by a steel nail but can be scratched by a masonry drill bit. based on this information, the sample mineral has to be softer than a. orthoclase. b. fluorite. c. apatite. d. corundum.
Answers: 2
Me with atoms and dalton i beg you which of the following statements is false about dalton's atomic...
Mathematics, 04.02.2020 11:03
Geography, 04.02.2020 11:03
English, 04.02.2020 11:03
Business, 04.02.2020 11:03
Mathematics, 04.02.2020 11:03
Mathematics, 04.02.2020 11:03
History, 04.02.2020 11:03
Mathematics, 04.02.2020 11:03