Answer:
Explanation:
The respiratory system works with the circulatory system to provide this oxygen and to remove the waste products of metabolism. It also helps to regulate pH of the blood. Respiration is the sequence of events that results in the exchange of oxygen and carbon dioxide between the atmosphere and the body cells.
Answer:
The answer to your question is a balanced equation
Explanation:
Chemical formulas are extremely useful in chemistry and these formulas follow the law of proportions but not the law of conservation of matter.
Coefficients indicate that an equation is balanced if these numbers are in proportion but it is not the answer.
Balanced equation is a feature of the law of conservation of matter.
Subscripts are necessary for chemical reactions but they are not a feature of the law of conservation of matter.
Your answer is b hope this helps
∆H of a reaction is positive
- Means the reaction is emitting energy in terms of product
- Hence the reaction is exothermic
- The energy is given to the surroundings