Question

analyze the chemical reactions below. then, identify the total number of atoms on the reactants side and the products side of the equation. lastly, write \yes\ if both sides contain the same number of atoms or
o\ if they do not.
chemical reactions

1. ca + 2co₂ → 2caco₃
2. 2s + 3o₂ + 2h₂o → 2h₂so₄
3. ch₄ + 2o₂ → co₂ + 2h₂o
4. ch₃ch₂oh + 2o₂ → ch₃cooh + h₂o

total atoms of reactants
total atoms of products
atoms equal? (yes or no)

Explanation:

Step1: Analyze reaction 1 ($Ca + 2CO_2

ightarrow 2CaCO_3$)
On the reactant side: 1 Ca - atom, 2 C - atoms, 4 O - atoms. On the product side: 2 Ca - atoms, 2 C - atoms, 6 O - atoms. Atoms are not equal.

Step2: Analyze reaction 2 ($2S+3O_2 + 2H_2O

ightarrow 2H_2SO_4$)
On the reactant side: 2 S - atoms, 6 O - atoms, 4 H - atoms. On the product side: 2 S - atoms, 8 O - atoms, 4 H - atoms. Atoms are not equal.

Step3: Analyze reaction 3 ($CH_4+2O_2

ightarrow CO_2 + 2H_2O$)
On the reactant side: 1 C - atom, 4 H - atoms, 4 O - atoms. On the product side: 1 C - atom, 4 H - atoms, 4 O - atoms. Atoms are equal.

Step4: Analyze reaction 4 ($CH_3CH_2OH+2O_2

ightarrow CH_3COOH + H_2O$)
On the reactant side: 2 C - atoms, 6 H - atoms, 5 O - atoms. On the product side: 2 C - atoms, 4 H - atoms, 4 O - atoms. Atoms are not equal.

Reaction	Total Atoms of Reactants	Total Atoms of Products	Atoms Equal (Yes or No)
2	S: 2, O: 6, H: 4	S: 2, O: 8, H: 4	No
3	C: 1, H: 4, O: 4	C: 1, H: 4, O: 4	Yes
4	C: 2, H: 6, O: 5	C: 2, H: 4, O: 4	No

Answer:

Reaction	Total Atoms of Reactants	Total Atoms of Products	Atoms Equal (Yes or No)
2	S: 2, O: 6, H: 4	S: 2, O: 8, H: 4	No
3	C: 1, H: 4, O: 4	C: 1, H: 4, O: 4	Yes
4	C: 2, H: 6, O: 5	C: 2, H: 4, O: 4	No