Question 5 (4 points)
(04.01 LC)
Which of the following is the most basic level of organization that can perform functions like converting food into energy? (4 points)
Atoms
ob
Cells
ос
Molecules
Od
Tissues

Which of the following is always a reactant in a combustion reaction? oxygen nitrogen hydrogen carbon

The following reaction shows sodium carbonate reacting with calcium hydroxide. na2co3 + ca(oh)2 → naoh + caco3 how many grams of naoh are produced from 20.0 grams of na2co3? (molar mass of na = 22.989 g/mol, c = 12.01 g/mol, o = 15.999 g/mol, ca = 40.078 g/mol, h = 1.008 g/mol) 12.2 grams 15.1 grams 24.4 grams 30.2 grams

Answer explain why it is not possible to deduce a complete order of reactivity.