Which of the following choices represents a balanced chemical equation? Ca3(PO4)2 + 6SiO2 → P4O10 + 3CaSiO3 2Ca3(PO4)2 + 6SiO2 → P4O10 + 6CaSiO3 2Ca3(PO4)2 + 3SiO2 → 2P4O10 + 2CaSiO3 3Ca3(PO4)2 + 2SiO2 → P4O10 + 4CaSiO3

1.       The reaction is:

The oxidizing agent is the one that is being reduced which is copper  where the charge changed from +2 to neutral while the reducing agent is the on being oxidized which is magnesium where the charge change from neutral to +2.

Final answer:

In the chemical reaction given, the oxidizing agent is Copper Nitrate (Cu(NO3)2) and the reducing agent is Magnesium (Mg).

Explanation:

In this chemical reaction, Magnesium (Mg) undergoes oxidation and Copper Nitrate (Cu(NO3)2) undergoes reduction. The oxidizing agent is the substance that causes oxidation by accepting electrons, hence the oxidizing agent here is Copper Nitrate (Cu(NO3)2). Likewise, the reducing agent is a substance that reduces another by providing electrons. In this case, Magnesium (Mg) is the reducing agent as it donates electrons to Copper Nitrate (Cu(NO3)2).

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Final answer:

The reaction will proceed in the forward direction to reach equilibrium.

Explanation:

To determine which reaction will go in order to reach equilibrium, we need to compare the initial number of moles of reactants to the stoichiometric coefficients of the balanced equation. The balanced equation for the reaction between NH₃, N₂, and H₂ is:

NH₃ + N₂ ↔ 2NH₃

Since the initial number of moles of NH₃, N₂, and H₂ are the same (1.00 mole each), the reaction will proceed in the forward direction to reach equilibrium.

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2,000 meters = 2 kilometers

Meters and kilometers are used in the metric system.

If we know that 1,000 meters = 1 kilometer, we can double 1 and we will get 2. Therefore, 2,000 meters = 2 kilometers.

Answer: 2, you divide the value by 1000, so... 2000/1000 = 2.

The solid HCl is composed of molecules held together by intermolecular dipole–dipole interactions. The  significant electronegativity difference between H and Cl make the dipole -dipole force in between HCl molecules.

What is dipole - dipole force ?

Dipole -dipole forces arises between molecules of permanent dipole moment. Covalent compounds are formed between two non-metals through electron sharing .

When one atoms is highly electronegative compared to the other, the shared pair of electrons attracts more to the electronegative atom. Which make partial charge separation and the compound becomes polar.

Two polar molecules attracts each other through dipole -dipole forces. HCl is a polar compound. Thus, in HCl solid, HCl molecules are held together by dipole -dipole forces.

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The atomic number of an atom is determined by the number of protons present in the atom that is the atomic number and number of protons are same for an atom. It is unique for every atom.

Atomic mass: It is nearly equals to the sum of mass of subatomic particles present in the atom that is sum of proton and neutron.

Number of neutrons: in an atom, the number of neutrons are always equal to the number of protons. If the number of neutrons are different for a number of proton then it is said be an isotope of that atom.

Protons plus neutrons: Sum of number of protons and number of neutrons is said to be the mass number of that atom.

Hence, the atomic number is the number of protons.