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The general chemical reaction for the combustion of a fossil fuel is the following one:
C(s) + O₂(g) → CO₂(g)
Now, we use the following conversion factor to go from kilograms of CO₂ to kilograms of O₂, using the molar masses of each compound and the reaction coefficients:
So, for producing 5*10¹² kg of CO₂,
3,64*10¹² kg of O₂ are required.
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Answer: CF4 is the formula
Explanation:
Answer:
Explanation:
Rounding 1100
Scientific notation 1.1 * 10^3
Answer:
See explanation
Explanation:
1) The reaction of magnesium with oxygen is;
Mg(s) + O2(g) -----> MgO2(s)
The oxidizing agent is the reactant whose oxidation number decreases from left to right in the reaction equation. The oxidation state of oxygen decreased from zero to -2 hence oxygen is the oxidizing agent in the reaction.
2) The advantages of fuel cell includes;
i) it is a clean source of energy
ii) Fuel cells operate quietly and do not constitute noise pollution
One disadvantage of the fuel cell is that its operation is costly.
3) Electrolytic and voltaic cell are similar because they are both electrochemical cells and involve a transfer of electrons between two electrodes.
Electrolytic cells do not operate spontaneously while voltaic cells operate spontaneously. In the volatic cell the anode is negatively charged while the cathode is positively charged. In the electrolytic cell, the anode is positively charged while the cathode is negatively charged.
The true statements about activation energy are as follows:
- Activation energy is the minimum quantity of energy that the reactants must possess in order to undergo a specified reaction.
- Activation energy is determined by the strength of the bonds that must be broken.
<h3>What is activation energy?</h3>
Activation energy is the minimum amount of energy that reactants in a chemical reaction must possess so as to get converted into products.
In a chemical reaction, reactants form products, hence, certain bonds must be broken in the reactant molecules to form the products.
The energy needed to break the bonds of the reactants is known as activation energy.
Therefore, the true statements about activation energy are as follows:
- Activation energy is the minimum quantity of energy that the reactants must possess in order to undergo a specified reaction.
- Activation energy is determined by the strength of the bonds that must be broken.
Learn more about activation energy at: brainly.com/question/11334504
