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Ahat [919]
2 years ago
8

Report the following measurement using two significant figures.

Chemistry
1 answer:
Elanso [62]2 years ago
7 0

Based on the information provided in this image shown above, the measurement to two (2) significant figures is equal to 3.50 mm.

<h3>What is measurement?</h3>

Measurement can be defined as an act or process through which the size, magnitude, dimensions, or distance traveled by a physical object or body is taken, especially for the purpose of an experiment.

<h3>What is a scale of measurement?</h3>

A scale of measurement can be defined as a classification which is used to illustrate the attributes of the values that are assigned to variables associated with a data set.

<h3>What is a significant figure?</h3>

In Mathematics, a significant figure can be defined as the number of digits in a numerical data (value), typically a measurement, which enhances its degree of accuracy.

Based on the information provided in this image shown above, the measurement of the film to two (2) significant figures is equal to 3.50 mm.

Read more on significant figures here: brainly.com/question/24491627

#SPJ1

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How is a pure substance different from other substances?
iren [92.7K]

Answer:

Explanation:

A pure substance is made up solely of that substance and can't be separated into any other substances. A mixture can be separated into two or more pure substances

7 0
3 years ago
In order to study hydrogen halide decomposition, a researcher fills an evacuated 1.11 L flask with 0.822 mol of HI gas and allow
Elza [17]

Answer:

Kc = 168.0749

Explanation:

  •           2HI(g)     ↔    H2(g) + I2(g)

initial mol:   0.822               0          0

equil. mol: 2(0.822 - x)         x           x

∴ [ HI ]eq = 0.055 mol/L = 2(0.822 - x) / (1.11 L )

⇒ 1.644 - 2x = 0.055 * 1.11

⇒ 1.644 = 2x + 0.06105

⇒ 2x = 1.583

⇒ x = 0.7915 mol equilibrium

⇒ [ H2 ] eq = 0.7915mol / 1.11L = 0.7130 M = [ I2 ] eq

⇒ Kc = ([ H2 ] * [ I2 ]) / [ HI ]²

⇒ Kc = ( 0.7130² ) / ( 0.055² )

⇒ Kc = 168.0749

 

4 0
3 years ago
Read the Safety Data Sheet of hydrogen peroxide to identify the recommended way to store this substance. Choose one:_______.
Lena [83]

Answer:

The correct option is C.

In a tightly closed container in a dry and well-ventilated place

Explanation:

Hydrogen peroxide should be store in a tight closed container and ventilated area because it is an oxidizing agent and it's has oxidizing characteristics. If to is exposed or the bottle lid is broken and exposed it can react and liberate oxygen and heat. It can react with the air and chemical it is exposed with. This will make it to be less effective and there will be a change in it's composition.

5 0
3 years ago
Which of the following is not the same as 2.97 milligrams? 0.0000297 kg, 0.00297 g, 0.297 ch
Travka [436]

the correct answer its  0.002975

4 0
4 years ago
Read 2 more answers
Someone please answer i’ll give you brainly.
lina2011 [118]
Let's hope she didn't watch it without me or i will never be speaking to her again :))
4 0
3 years ago
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