The metric unit of force is the A. kilogram.
B. newton.
C. gram.
D. nanometer.
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Mg3 N2 how do I get my answer
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Final answer:
The Lewis dot structure for Mg3N2 represents the ionic bonding between magnesium and nitrogen. Each magnesium atom donates its 2 valence electrons to nitrogen, as represented by zero dots around each Mg and eight around each N.
Explanation:
The student is asking about the Lewis dot structure of Mg3N2, which is commonly known as magnesium nitride. The Lewis dot structure is a graphical representation of the molecule that shows how the electrons are arranged among the atoms of the molecule.
To draw the Lewis dot structure for magnesium nitride, follow these steps:
- Magnesium (Mg) has 2 valence electrons, and there are 3 Mg atoms, so in total there are 6 valence electrons from Mg.
- Nitrogen (N) has 5 valence electrons, and there are 2 N atoms, so in total there are 10 valence electrons from N.
- In Mg3N2, Mg donates its 2 electrons to fill the octet of N, and N accepts these electrons.
- After this, each Mg atom is surrounded by zero dots and each N atom is surrounded by eight dots.
This process represents the Ionic bonding in Mg3N2.
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Molarity = 0.500 M
M = n / V
0.500 = n / 2.00
n = 0.500 * 2.00
n = 1.0 mole KNO₃
Molar mass KNO₃ = 101.1032 g/mol
1 mole ------ 101.1032 g
1.0 mole ------ ?
mass = 1.0 * 101.1032 g / 1
mass = 101.1032 g of KNO₃
hope this helps!
Answers
Answer:
Germanium.
Explanation:
In a neutral atom: the number of protons = the number of electrons.
Atomic number of a neutral atom = number of electrons = number of protons.
- Phosphorous is an element with atomic number 15 and thus contains 15 electrons and 15 protons.
- Cobalt is an element with atomic number 27 and thus contains 27 electrons and 27 protons.
- Germanium is an element with atomic number 32 and thus contains 32 electrons and 32 protons.
- Sulfur is an element with atomic number 16 and thus contains 16 electrons and 16 protons.
The element that has 32 protons in its nucleus is Germanium.
Answers
Answer:
See the answer below
Explanation:
A neutralization reaction is a reaction that involves acid and base with the production of salt and water as the end products. An example is as below:
HCl + NaOH --> NaCl + H2O
The salt produced here is NaCl. In solution, NaCl will ionize as:
Hence, the salt's positive ion (Na+) was contributed by the base (NaOH) while its negative ion (Cl-) was contributed by the acid (HCl).
Final answer:
In a neutralization reaction involving Ba(OH)2 and HNO3, the salt's positive ion comes from the base and the negative ion comes from the acid. In the molecular and net ionic equations, spectator ions, which are unaltered in the process, are included and excluded respectively.
Explanation:
In a neutralization reaction, an acid and a base react to produce water and a salt. Taking the provided reaction of Ba(OH)2 (aq) + 2HNO3(aq) → Ba(NO3)2(aq) + 2H₂O(1), the salt's positive ion (Ba²+), also known as the cation, comes from the the base, Ba(OH)2. The salt's negative ion (NO3-), also known as the anion, comes from the acid, HNO3. This reaction also represents a molecular equation where all reactants and products are represented as neutral substances. A net ionic equation would exclude the spectator ions, ions whose presence is required to maintain charge neutrality but are chemically and physically unaltered by the process.
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For number one, the reaction is the neutralization of a strong acid and a strong base to yield a salt and water. The strong acid is the HCl and the strong base is NaOH. The salt is NaCl.
For number two, the equation is balanced. Na in the reactant side has one atom and also in the product side. O has only one atom in the product and in the reactant. There are 2H’s in the reactant and in the product side (present in H2O, the 2 in H stands for 2 atoms of H). One atom of Cl is present in the reactant and product side.
For number three, the reactants are NaOH-sodium hydroxide and HCl-hydrogen chloride(hydrochloric acid). The products are NaCl-sodium chloride and H2O-water.
(1) average potential energy of the particles of
the sample
(2) average kinetic energy of the particles of the
sample
(3) total nuclear energy of the sample
(4) total thermal energy of the sample