Answer:
861 kJ = 861000 J,
3495 kcal = 14623.08 kJ
Explanation:
As I mentioned before, the last bit " 7.84 × 106 " just threw me off track, so I am simply going to assume that that does not appear in your question.
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Now we have 861 kilojoules, and have to convert it into joules for this first bit. Kilo being equal to 1000, to convert to joules you would have to multiply 861 by 1000, = 861000 Joules.
This second bit here asks us to convert 3495 kilocalorie to kilojoules. The difference between the two is that one is about 4.18 times greater than the other, so 3495 kilocalorie = 3495 * 4.18 = 14623.08 kilojoules.
<u><em>Hope that helps!</em></u>
The time for the reaction will keep increasing as water levels increase.
<h3>Concentration and rate of reactions</h3>
Concentration is one of the factors that affect the rate of reactions. It affects both reversible and irreversible reactions.
An increase in the concentration of reactants increases the rate at which products are formed from reactions. A decrease in the concentration of reactants, on the other hand, decreases the rate of reactions.
From the table, the concentration of sodium thiosulfate keeps decreasing downward. This is because the volume of water being added kept increasing.
Thus, the time taken for the reactions will keep increasing as we move downward on the table.
More on concentration and rate of reactions can be found here: brainly.com/question/22012459
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Answer:
The final temperature of the sample is 21.004 °C
Explanation:
<u>Answer:</u> The density of substance is
<u>Explanation:</u>
To calculate density of a substance, we use the equation:
We are given:
Mass of substance = 61.6 g
Volume of substance =
Putting values in above equation, we get:
Hence, the density of substance is
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