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nata0808 [166]
1 year ago
8

Round to 3 significant figures 78.6500

Chemistry
1 answer:
cupoosta [38]1 year ago
7 0

Answer:

78.7

Explanation:

The number has 4 significant figures: 7,8 6 and 5.

To round off to 3 significant figures, the target digit is the third significant figure in the number.The determining digit is the fourth significant figure in the number; it is 5 hence the target digit will go up by 1 and any digits to the right of it will be rounded down to 0.

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The mass of an electron is about 9.11 × 10 -9 kg., write this whole number​
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Answer:0.00000009

Explanation:

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Which of the following undergoes change during a chemical reaction? A. atomic masses of elements in reactants B. element identit
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Chemical bonds between atoms in reactants undergo change during a chemical reaction.

 

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The correct answer between all the choices given is the last choice or letter D. I am hoping that this answer has satisfied your query and it will be able to help you in your endeavor, and if you would like, feel free to ask another question.

8 0
3 years ago
Someone please help!
natta225 [31]

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I hope my answer has come to your help. Thank you for posting your question here in Brainly. We hope to answer more of your questions and inquiries soon. Have a nice day ahead!
6 0
3 years ago
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A drop of water (H20) has a mass of 2.34 x 10e-2 grams. How many
creativ13 [48]

Answer:

2333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333

Explanation:

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Hope this helps! :)

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