There are several ways to model a compound. One type of model is shown
What is the chemical formula for the molecule
represented by the model?
ОСНО
O C4H9O2
ОСНО
O C3H802
НОНН
H-C-C-C-C-0-Н

chronological thinking is an indispensable tool to structure a historical narrative and to give meaning to a sequence of events. the final section presents the results of a survey to test the chronological thinking of lower secondary school students carried out by the educational research institute.

stable food supply,social structure, government,religion,culture/art,technology and writing/language;

c. making citizens of the states also citizens of the union. apex g'

answer; lexical approach;