Which of the following was not among democritus’s ideas? group of answer choices
atoms are indestructible.
atoms are indivisible.
atoms retain their identity in a chemical reaction.
matter consists of tiny particles called atoms.

Atoms retain their identity in a chemical reaction.

Explanation:

According to Democritus, matter consists of tiny particles called atoms which are indivisible and indestructible. However, investigation into the changes that occur In chemical reactions had not yet commenced in the time of Democritus hence it isn't originally part of his ideas.

answer; the numbers of valence electrons in the acetic acid molecule (ch3co2h) is 24;

a. the law of proportion states the combination of 2 atoms in a specific ratio to produce multiple compounds such as the given statement of question ‘1st compound contains 88.8 % cu ’ indicates 88.8 g of cu is present along with 11.2 g oxygen in 100 g of compound whereas the statement ‘2st compound contains 79.9 % cu ’ indicates 79.9 g of cu is present along with 20.1 g oxygen in 100 g of compound

1st compound contains 88.8 g cu

for cu

m = 63 g /mol

atomic % = 88.8 /63 = 1.42

for o

m = 16 g /mol

atomic % = 11.2 /16 = 0.7

b. the emperical formula of 1st compound is

cu1.4o0.7

cu2o