When recording a measurement what two things should be considered? Choose two.

1 answer:

3 0

When recording a measurement we report the final value in terms of number followed by specific units. The numeral has to be reported to correct number of significant figures. The final answer must have all the known figures with one estimated digit. In order to see which number is significant we follow a set of rules. All non zero numbers are significant. Embedded zeroes are significant. In a decimal, leading zeroes are insignificant. Trailing zeroes are not significant unless present in a decimal number.

Units are the second important thing to consider while recording a measurement, units give us an idea on what the dimensions of measurement are. For example, length is measured in the units of meters, mass in thee units of grams.

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What is the name of CH3CH2OCH2CH3?

natali 33 [55]

Answer:

It is an ether so the nomenclature rule for naming the above compound will be:Alkoxy alkane , generally Alkoxy represent the smaller alkyl group and as in the above question both the alkyl group are same so it's IUPAC Name will be: Ethoxy ethane or Diethylether both are correct

Explanation:

happy to help ya!

5 0

3 years ago

The volume of a gas is 1.15 L at STP. At what temperature would the volume of the gas increase to 1.56 L, if the pressure is dec

denis23 [38]

A gas occupies 1.15 L at standard pressure and temperature and 1.56 L at 317 K and 650 mmHg, assuming ideal behavior.

<h3>What is an ideal gas?</h3>

An ideal gas is a gas whose behavior can be explained through ideal gas laws. One of them is the combined gas law.

A gas occupies 1.15 L (V₁) at STP (T₁ = 273,15 K and P₁ = 760 mmHg). We can calculate the temperature (T₂) at which V₂ = 1.56 L and P₂ = 650 mmHg, using the combined gas law.

$\frac{P_1 \times V_1}{T_1} = \frac{P_2 \times V_2}{T_2}\\T_2 = \frac{P_2 \times V_2 \times T_1}{P_1 \times V_1} = \frac{650mmHg \times 1.56 L \times 273.15K}{760mmHg \times 1.15 L} = 317 K$

A gas occupies 1.15 L at standard pressure and temperature and 1.56 L at 317 K and 650 mmHg, assuming ideal behavior.

Learn more about ideal gases here: brainly.com/question/15634266

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2 years ago

In what period will you find chlorine

Ber [7]

Answer:

Chlorine can be found in Period 3.

Explanation:

Periods on the periodic table are the rows (horizontal sections) that group elements together. By looking across Period 3, you will find Cl (chlorine).

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3 years ago

For this question, use the main assumptions of the Kinetic Molecular Theory of gases:

maksim [4K]

I would think that it's A

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3 years ago

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A new synthetic element has two isotopes. If the first isotope has a mass of 259.98 amu and a percent abundance of 62%, what is

Sphinxa [80]

The sum of the percentage abundance of these two isotopes of the new synthetic element should be equal to 100. If we let x be the percent abundance of the second isotope, we have the equation,
62 + x = 100
The value of x from the equation is 38.

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4 years ago