b) They both have the same mass.
c) A mole of magnesium has more mass.
d) They both have the same number of atoms.
Answer: d) They both have the same number of atoms.
Explanation:
A mole is defined as the amount of substance that contains Avogardro number of the substance. Avogadro's number is given by .
According to avogadro's law, 1 mole of every substance weighs equal to its molecular mass and contains avogadro's number
Thus 1 mole of magnesium and iron both contains particles.
reacts with oxygen to form ionic bonds.
Further Explanation:
Covalent bonds are the types of bonds that involve the sharing of electrons between the bonded atoms. This bond is usually formed between two or more non-metals.
Ionic bonds are the chemical bonds that involve the transference of electrons from one atom to another. These bonds are generally formed between metals and non-metals. In these types of bonds, ions are formed by the atoms. Cations are formed by the loss of electrons and anions result from the gain of electrons.
Oxygen is a non-metal. In order to form an ionic bond with oxygen, the other element has to be a metal.
Hydrogen, chlorine, and nitrogen are non-metals so these can form covalent bonds with oxygen. But calcium is a metal and it forms ionic bonds with oxygen. Calcium loses two electrons to form and these electrons are gained by oxygen, resulting in the formation of . The attraction between and is an ionic bond and the resulting compound is CaO (For structure, refer to the attached image).
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Answer details:
Grade: High School
Chapter: Ionic and covalent compounds
Subject: Chemistry
Keywords: ionic bond, covalent bond, nitrogen, hydrogen, chlorine, calcium, oxygen, CaO, metal, non-metal.
Calcium is the element that reacts with oxygen to form an ionic bond. Calcium forms the ionic compound calcium oxide with oxygen. Hydrogen, chlorine, and nitrogen do not typically form ionic bonds with oxygen.
The element that reacts with oxygen to form ionic bonds is calcium.
Calcium (element #20 on the periodic table) readily reacts with oxygen to form calcium oxide, which is an ionic compound. In this reaction, calcium loses two electrons to become Ca2+, and oxygen gains two electrons to become O2-. This transfer of electrons creates an ionic bond, which is a type of chemical bond.
Hydrogen, chlorine, and nitrogen do not typically form ionic bonds with oxygen under normal conditions. Hydrogen forms covalent bonds with oxygen to create water, whereas chlorine and nitrogen mostly form covalent bonds.
Learn more about Ionic bonds here:
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A. Ne
B. NaCL
C. Trail Mix
D. graphene