Six astronauts are still on the space station as part of a planned year-long stay in space, the longest tour of duty in the station's 15-year history.
The molecular formula of citric acid is C 6 H 8 O 7. The chemical formula for citric acid is best shown by a diagram of its complete structural formula. This shows how the atoms are arranged in the molecule. Citric acid has three carboxyl or-COOH groups and is triprotic in nature.
It is made of a metal and a nonmetal. It is formed when atoms share electrons. Question 4 (Multiple Choice Worth 2 points) Ionic compounds are also known as salts. valence. organic. elements. Question 5 (Multiple Choice Worth 2 points) The compound CO is an example of a(n) salt. element. ionic compound.uestion 4 (Multiple Choice Worth 2 points) Ionic compounds are also known as salts. valence. organic. elements. Question 5 (Multiple Choice Worth 2 points) The compound CO is an example of a(n) salt. element. ionic compound.