Answer: 37.8 grams
Explanation:-
As we know that
.................(1)
where,
q = heat absorbed or released
= mass of iron rod = 32.4 g
= mass of water = ?
= final temperature =
= temperature of iron rod =
= temperature of water =
= specific heat of iron rod =
= specific heat of water=
Now put all the given values in equation (1), we get
Therefore, the mass of the water is 37.8 grams
Answer:
Significant figures are a measure of <u><em>precision</em></u>.
Explanation:
The significant figures of a number are those that have a real meaning and, therefore, provide some information. Therefore, the set of digits that are known with certainty in a measure are called significant figures and are the digits of a number considered non-null.
Any experimental measurement is inaccurate and must be expressed with its significant figures.
In this way, significant figures express the precision of a measuring tool.
A. <span> Ionic—Magnesium will give 2 electrons to oxygen, and both will become ions.</span>
Metallic bonds are found in metals like zinc.
The amount of absorption force is not same at all time and at all where .
It has difference at different time periods
So during those the curve goes up and down and repeat this flow
So there are dips