Question

structure of matter
elements are pure substances composed of only one type of atom that cannot be broken down into any other substances by chemical or physical means. the periodic table of elements is a way of organizing all known elements by their physical and chemical properties.
compounds are formed when atoms of different elements are combined by chemical bonds. for questions 1 - 5, use your periodic table to write an equation to calculate the combined atomic mass of each compound and find the solution to the equation. an example is completed below.
different molecules made from different elements

molecule	elements	total atomic mass (1 molecule)
sugar (c₆h₁₂o₆)	6 carbon 12 hydrogen 6 oxygen
carbon dioxide (co₂)	1 carbon 2 oxygen
penicillin (c₁₆h₁₈n₂o₄s)	16 carbon 18 hydrogen 2 nitrogen 4 oxygen 1 sulfur

Explanation:

Step1: Calculate atomic mass of sugar

Atomic mass of carbon is approximately 12.01 amu, hydrogen is 1.008 amu and oxygen is 15.99 amu. For sugar ($C_6H_{12}O_6$), mass of carbon = $6\times12.01=72.06$ amu, mass of hydrogen = $12\times1.008 = 12.096$ amu, mass of oxygen = $6\times15.99=95.94$ amu.
Total atomic mass = $72.06+12.096 + 95.94=180.096$ amu.

Step2: Calculate atomic mass of carbon - dioxide

For carbon - dioxide ($CO_2$), mass of carbon = $1\times12.01 = 12.01$ amu, mass of oxygen = $2\times15.99=31.98$ amu.
Total atomic mass = $12.01+31.98 = 43.99$ amu.

Step3: Calculate atomic mass of penicillin

For penicillin ($C_{16}H_{18}N_2O_4S$), mass of carbon = $16\times12.01=192.16$ amu, mass of hydrogen = $18\times1.008 = 18.144$ amu, mass of nitrogen = $2\times14.01=28.02$ amu, mass of oxygen = $4\times15.99 = 63.96$ amu, mass of sulfur = $1\times32.06=32.06$ amu.
Total atomic mass = $192.16+18.144+28.02+63.96+32.06=334.344$ amu.

Answer:

Sugar: 180.096 amu
Carbon - Dioxide: 43.99 amu
Penicillin: 334.344 amu