The correct answer is 50 Joules because as energy converts from one form to another, it cannot be created or destroyed during the conversion
B. zinc, gold, aluminium, oxygen.
C. nitrogen, copper, mercury, water.
D. Chlorine, argon, sodium, limestone.
A list that contains only element is option B which include zinc, gold, aluminum, and oxygen.
A chemical element may be defined as a type of simple substance that significantly cannot be broken down or fragmented into smaller parts or changed into another substance.
The basic part of an element is an atom, which contains subatomic particles like protons, neutrons, and electrons. All atoms of an element have the same number of protons. In list A, the air is not an element, in list C, water is not an element, in list D, limestone is not an element. While list B includes all elements like zinc, gold, aluminum, and oxygen.
Therefore, a list that contains only elements is option B which includes zinc, gold, aluminum, and oxygen.
To learn more about Chemical elements, refer to the link:
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the distance light travels in one earth year
B.
the distance light travels from the sun to the earth
C.
the distance light travels in one orbit of the moon
D.
the time it takes light to travel across the universe
No, because a child under the age of 16 does not have the right to engage in such relationships and it's punishable by law if the relationship becomes intimate.
no that is inappropriate he could go to jail!
Answer: Synthesis reaction
Explanation:
Corrosion is the process of slow eating away of metal due to attack of atmospheric gases on the surface of metal resulting into formation of compounds such as oxides, sulfides , carbonates etc is called as corrosion.
Corrosion of iron is called as rusting. Rust is hydrated ferric oxide .
Synthesis reaction is a chemical reaction in which two reactants are combining to form one product.