Answer:Oxygen
Explanation:
Oxygen gets reduced when iron is oxidized.
Answer:
B
Explanation:
The letter in this energy profile diagram of an exothermic change that signifies energy is B;
- An exothermic reaction is one in which heat is liberated to the surroundings.
- The surrounding becomes hotter at the end of the change.
- B is the enthalpy change of the reaction
- A is the activation energy
- C is the reactant
- D is the product
When children are small they are given vaccines that are usually dead viruses given to the body. These viruses don't cause damage to body and the body takes it as a real virus and prepare antibodies in the body but when a certain real disease or virus is in the body , the already presented antibodies fight with them for the protection of the body. These antibodies remain in the body so that when a disease or virus attacks the body the antibodies are already geared up to fight against them. Thus antibodies protect the body against invading microbes or viruses.
Answer:
As soon as a front passes a particular location, the weather could change from a steamy maritime tropical air mass to a dry.
Explanation:
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