What is an electrically charged atom? A. ion B. isotope C. molecule D. compound
2 answers:
Answer: Option (A) is the correct answer.
Explanation:
When a neutral atom loses an electron then it acquires a negative charge and if a neutral atom gains an electron then it acquires a positive charge. Hence, an ion is formed in both the cases.
For example, sodium on losing an electron become ion.
An isotope is defined as the specie which contains same number of protons but different number of neutrons.
For example, and
are isotopes.
A molecule is defined as a substance that contains chemically combined two or more number of atoms of an element.
For example, is a molecule.
Whereas a compound is defined as a substance in which different atoms of different elements chemically combine together in a fixed ratio by mass.
For example, is a compound.
Thus, we can conclude that an ion is an electrically charged atom.
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Answer:
No reaction
Explanation:
Single-displacement reaction is the chemical reaction in which one metal which has higher negative redox potential replaces the another from it's salt solution.
Thus, Cu cannot replaces zine from its salt as it is less reactive than zince.
However, zinc can replace copper from its salt as:
Answer:
20.02 grams of chalk.
Explanation:
