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Alinara [238K]
3 years ago
12

How do you round 3795 to THREE sig figs?

Chemistry
1 answer:
Margaret [11]3 years ago
6 0

Answer:

The answer is 380.

Explanation:

Significant figures:

All non-zero digits are consider significant figures like 1, 2, 3, 4, 5, 6, 7, 8, 9.

Leading zeros are not consider as a significant figures. e.g. 0.06 in this number only one significant figure present which is 6.

Zero between the non zero digits is consider significant like 108 consist of three significant figures.

The zeros at the right side e.g 6300 are also significant. There are four significant figures are present.

How to round the value to three significant figures.

First of all we will place the vertical line after 3rd digit.

379/5

Now we will look at the 4th digit. If it is five or more than five then one is added to 3rd digit. If it is less than five the 3rd digit remain same. In given value 4th digit is 5 thus one is added into 9 and the value become 380.

The answer is 380.

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So I am lost and I don't know how what any of those conversion factor things are and I'm wondering how to do #2,3, and 4. (I did
dalvyx [7]

Explanation:

#2.

A centigram is 1/100 of a gram, so that means a gram equals 100 centigrams.

Therefore you multiply 72.4 grams by 100/1 (or just 100), and get 7240 cg.

You did that one right but put the wrong unit in the answer. It is is cg ( centigrams).

#3.

1 liter is equal to 1000 milliliters, and I kiloliter is equal to 1000 liters. So one kiloliter is 1000*1000 milliliters or 1,000,000 milliliters.

The conversion factor would be

1/1000000

#4.

1 gigabyte is equal to 10^9 bytes.

I byte is equal to 10^9 bytes.

So 1 gigabyte is 10^9 * 10^9 nanobytes, or 10^18.

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6 0
4 years ago
By which process aqua fortis is manufactured
kap26 [50]

Answer: Aqua fortis is also known as Nitric Acid  

Explanation: and the process in making aqua fortis is THE OSTWALDS PROCESS

detailed explanation by me

ammonia is also used in this process, which is reacted with oxygen and water and a catalyst platinum.

HOPE THIS HELPSS!!!

7 0
3 years ago
Difference between the human body and Earths crust
Zolol [24]

Answer:

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Lucy had two samples of different iron ores, haematite and magnetite.
Kaylis [27]

Answer:

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Explanation:

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7 0
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Answer:

Temperature is not a chemical change because when a substance changes in temperature, its chemical makeup is not changing.

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