Is Ba(NO3)2 covalent or ionic

Answer:

612.2kJ are produced

Explanation:

Based on the reaction:

2P + 5Cl₂ → 2PCl₃  + 886.0kJ

<em>When 2 moles of P react with an excess of chlorine 886.0kJ are produced (That is 886.0kJ / 2mol P).</em>

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To solve this question we must use the last statement as follows:

1.382mol P * (886.0kJ / 2mol P) =

Answer:

Gravity or the gravitational force is defined as the force of attraction occurring between all states of matter. The sun’s gravity, mass, and radius plays a crucial role in the properties of the Sun.

Explanation:

The gravity of an object can be determined using the formula:

Now, according to the question, the mass of the sun is halved, which will be written as:

Thus, according to the equation, the mass of an object is directly proportional to the gravitational field. since, the mass of the Sun is reduced to half, the gravity of the Sun will be halved.

Answer : The correct option is, (B)

Explanation :

According to the Bronsted Lowry concept, Bronsted Lowry-acid is a substance that donates one or more hydrogen ion in a reaction and Bronsted Lowry-base is a substance that accepts one or more hydrogen ion in a reaction.

Or we can say that, conjugate acid is proton donor and conjugate base is proton acceptor.

The given equilibrium reaction is,

Here, is loosing a proton, thus it is considered as an acid and after losing a proton, it forms which is a conjugate base. That means, are act as a conjugate acid-base pairs.

Hence, correct option is, (B)