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True [87]
3 years ago
11

What must be true of the bonds for a reaction to be endothermic

Biology
1 answer:
koban [17]3 years ago
5 0
More bonds are broken than made. This is because the energy will remain in the substance, making it an endothermic reaction.
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A wooden walkway and a sandy beach are at the same temperature. The sand feels much hotter because it has a greater _____.
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Round the number 14.587020 to 4 significant digits. a. 14.59 b. 14.58 c. 14.587 d. 15.00 Please select the best answer from the
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Answer:

A. 14.59

Explanation:

Firstly, rounding a number means making a number simpler but keeping its value close. So rounding 14.587020 means making it look less complex but making sure the rounded value is within range of the original value.

Next, we have to know that to round a number;

* Digits below 5 (<5) rounds down the next digit to their left i.e. we leave the digits the same and turn the rounding digit to 0.

* Digits above 5 (>5) rounds up the next digit to the left i.e. we add 1 to the next digit

Next, to round to 4 significant digits means we want to see only the first four non-zero digits in our value. Note that, all non-zero digits i.e. 1-9 are significant

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= 14.587020

= 14.58700

= 14.59000

We have four (4) digits which are non-zero already, hence we stop here and remove all zeros to the right

Hence, 14.587020 to 4 significant digits is 14.59 i.e. 14.587020 ~ 14.59

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Is this correct? (Check image)
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Answer:

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Learn more on antibodies here

brainly.com/question/785248

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