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Drupady [299]
2 years ago
15

The number 0.0020 expressed in scientific notation is?

Chemistry
2 answers:
Feliz [49]2 years ago
8 0

Answer: Here's your answer: Therefore, the decimal number 0.0020 written in scientific notation is 2 × 10-3 and it has 2 significant figures. Here are some more examples of decimal to scientific notation 0.00200 in scientific notation

Explanation: Pls mark me brainiest pls

Ahat [919]2 years ago
4 0

Answer:

2x10^{-3} (The "x" is the multiplication sign)

Explanation:

A scientific notation is expressed as

10^{n}

When you have decimals, the exponent becomes negative:

10^{-2}=\frac{1}{100}  =0.01

So this is:

2x10^{-3}

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Are these atoms isotopes of each other or different elements?<br>​
topjm [15]

This is not easy. For many of the chemical elements there are several known isotopes. Isotopes are atoms with different atomic masses which have the same atomic number. The atoms of different isotopes are atoms of the same chemical element; they differ in the number of neutrons in the nucleus.

4 0
3 years ago
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Limestone has a density of 2.72 g/cm3. What is the mass of 8.92 cm3 of limestone?
timurjin [86]
It should be 24.2624 because if there’s 2.72g in every cm3 and there are 8.92 cm3, then you simply multiply the two numbers
hope this helped :)
8 0
3 years ago
Read 2 more answers
 
Katyanochek1 [597]

Answer:

The answer to your question is     V2 = 4.97 l

Explanation:

Data

Volume 1 = V1 = 4.40 L                    Volume 2 =

Temperature 1 = T1 = 19°C               Temperature 2 = T2 = 37°C

Pressure 1 = P1 = 783 mmHg           Pressure 2 = 735 mmHg

Process

1.- Convert temperature to °K

T1 = 19 + 273 = 292°K

T2 = 37 + 273 = 310°K

2.- Use the combined gas law to solve this problem

                  P1V1/T1  = P2V2/T2

-Solve for V2

                  V2 = P1V1T2 / T1P2

-Substitution

                  V2 = (783 x 4.40 x 310) / (292 x 735)

-Simplification

                 V2 = 1068012 / 214620

-Result

                 V2 = 4.97 l

6 0
3 years ago
Subject: name of <br>1).6.0.0.), Mu...<br>MC.co.)​
Nata [24]
Dun leo wahei aghdisn apple cat aja Ikooko aq app app ni awọn

















Supper
4 0
3 years ago
Please help will mark brainliest.<br><br> there are four questions and a formula
fomenos

Explanation:

1=2 atoms

2=4-n where n is the number of bonds to that carbon

3=10

4=2

7 0
4 years ago
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