6. _atom a. shows the elements and ratio of atoms in a compound b. a group of two or more atoms held together by
chemical bonds
c. a substance made of two or more elements
· chemically combined in a set ratio
d. a substance that cannot be broken down into any
other substance
e. two or more substances together in the same place
but not chemically combined
f. the basic particle of any element
g. the force of attraction between two atoms
7. _ chemical bond
8. _ molecule
9. _element
10. _ chemical formula
11. _ compound
12. _ mixture
Match each term with its definition by writing the letter of the correct definition in the
the right column on the line beside the term in the left column. really fast

In the first paragraph, name a theme of Paul Laurence Dunbar's poem "Sympathy," and explain how it develops, citing specific examples

Explanation:

  the   balanced   equation   for   reaction of   ca metal   with   o2 to   produce   cao   is as below

2 ca+ o2→ 2 cao2

  explanation

the reaction is   balanced     since the   number of atoms   in reactant side is   equal to   number of atoms   in   product side.   for   example   they   are 2   atom of   ca in   reactant   side   and   2   atoms of ca   in   the product side.

  the   process   is a   meet the   requirement   of   redox   reaction because :     calcium   is   oxidized   from   oxidation state 0   to 2+   while   oxygen   is reduced from   oxidation   state   0   to 2-

answer: cellular respiration takes in food and uses it to create atp, a chemical which the cell uses for energy. usually, this process uses oxygen, and is called aerobic respiration. it has four stages known as glycolysis, link reaction, the krebs cycle, and the electron transport chain.