Answer:
The chemical equation that is properly balanced is;
e. Sn + 4HNO₃ → SnO₂ + 4NO₂ + 2H₂O
Explanation:
To solve the question, we note the reactions thus and we look for a reason why the reaction is not balanced as follows.
a. CH₃CHO + 3O₂ → 2CO₂ + 2H₂O
Here we have 7 oxygen atoms in the reactant and 6 in the products
Not balanced
b. NH₄NO₃ → 2H₂O + N₂
Here we have three oxygen in the reactant and four in the products = Not balanced
c. Na₂CO₃ + 2H₂SO₄ → Na₂SO₄ + 2H₂O + CO₂
Here we have 11 oxygen atoms in the reactant and 8 in the products = Not balanced
d. 2Na₂SO₄ + 3Bi(NO₃)₃ → Bi₂(SO 4)₃ + 9NaNO₃
Here we have 2 Na in the reactants and 9 Na in the products = Not balanced
e. Sn + 4HNO₃ → SnO₂ + 4NO₂ + 2H₂O
Here we have equal number of products and reactants = Balanced chemcal reaction equation.
Answer:
The correct option is C.
Explanation:
Nuclear and chemical reactions are two types of reactions that one usually encounter in chemistry. These two reactions differ from each other significantly. For instance, the nuclear reactions usually involve the nucleus of the involving atoms while chemical reactions has to do with the electrons that are located outside of the nucleus of the atoms. Also, it is only chemical reaction that are influenced by factors such as temperature, pressure, catalyst, etc. Such factors does not determine the rate of nuclear reactions.
Answer:
The lightning rod attracts lightning and is not connected to any other pieces of metal that may harm any electrical circuits.
Explanation:
I hope this helps, I tried my best to explain it quickly for you.