245.64 g is the mass of the light bulb.
<h3>What is mass ?</h3>
Mass is a physical body's total amount of matter. Inertia, or the body's resistance to acceleration when a net force is applied, is also measured by this term. The strength of an object's gravitational pull to other bodies is also influenced by its mass. The kilogram serves as the SI's fundamental mass unit.
- For a body, mass is constant. Mass can be calculated using the formula: mass = volume density. A mass's weight is a measurement of the gravitational force at work on it. The kilogram is the SI unit of mass.
- The mass of the substance will therefore be calculated as follows: MASS OF A SUBSTANCE = VOLUME DENSITY.
So finally we can say that the mass of the light bulb and paperclips together is 245.64 g.
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Answer is: between the carbon atom and the oxygen atom in a molecule of methanal there are two (2) <span>pairs of electrons.
Methanal or formaldehyde (H</span>₂C=O)<span> </span><span>is the simplest of the </span><span>aldehydes.
In methanal, bond between carbon and oxygen is double covalent bond (one sigma and one pi bond), which means there are four shared electrons or two pair of electrons.</span>
Explanation:
Nitrous acid is prepared in situ from hydrochloric acid and sodium nitrate because it is a weak acid and unstable. It only exists in an aqueous solution.
![H^++NO_{2}^{-}\rightarrow HONO](https://tex.z-dn.net/?f=H%5E%2B%2BNO_%7B2%7D%5E%7B-%7D%5Crightarrow%20HONO)
Nitrous acid is an unstable acid which gets decompose into the water , nitrogen dioxide and nitrogen monoxide gas.
![2 HNO_2 \rightarrow NO_2 + NO + H_2O](https://tex.z-dn.net/?f=2%20HNO_2%20%5Crightarrow%20NO_2%20%2B%20NO%20%2B%20H_2O)
Whereas nitric acid is highly stable acid which can be easily prepared from its reagent and it can easily be stored for future use.