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mojhsa [17]
3 years ago
8

PLZ HELP ASAP FOR 20 POINT FOR BOTH!

Chemistry
1 answer:
77julia77 [94]3 years ago
5 0
1.08 g/cm^3
(when multiplying or dividing you use the least amount of significant figures to answer your question by which is the 19.5. That gives you 3 significant figures.)

4.83 km
(when adding or subtracting however you use the least precise the 4.810 goes into the thousandths place which is more precise then the 0.08 which only goes to the hundredths place.)
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PLEASE HELP ME!! DIMENSIONAL ANALYSIS<br> CHEMISTRY<br> DUE IN 5 MINS!!!
Eddi Din [679]

Answer:

12 mi/h

Explanation:

Step 1: Given data

  • Total distance (d): 6 km
  • Time elapsed (t): 19 min

Step 2: Convert "d" to miles

We will use the conversion factor 1 mi = 1.60934 km.

6 km × 1 mi/1.60934 km = 3.7 mi

Step 3: Convert "t" to hours

We will use the conversion factor 1 h = 60 min.

19 min × 1 h/60 min = 0.32 h

Step 4: Calculate the average speed of the runner (s)

The speed is equal to the quotient between the total distance and the time elapsed.

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6 0
3 years ago
How can i prove that nascent oxygen more reactive than normal oxygen ?
laila [671]
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6 0
3 years ago
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8 0
2 years ago
What is the significance sodium hydroxide and hydrochloric acid
hammer [34]

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4 0
3 years ago
Read 2 more answers
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