How many elements are found in the following chemical equation? K + Cl → KCl A. 1 B. 2 C. 3 D. 0
2 answers:
Answer: Option (B) is the correct answer.
Explanation:
An element is defined as a substance that contains same type of atoms.
For example, element K contains only atoms of potassium.
Whereas a substance in which two or more different elements chemically combine together in a fixed ratio by mass is known as a compound.
For example, KCl contains atoms of K and Cl in 1 : 1 ratio. Hence, it is a compound.
Therefore, in the chemical reaction, there are only two elements which are K and Cl.
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Answer:
C) 4.24 x
Explanation:
E = Δm
Δm = 0.0284 x 1.66 x kg = 4.714x
kg
putting value in above equation
E = 4.714xkg x (3x
= 4.24 x