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mamaluj [8]
3 years ago
13

Which of the following is NOT a characteristic of stars? A) Size B) temperature C) texture D) color

Chemistry
1 answer:
Lynna [10]3 years ago
7 0

Answer:

C

Explanation:

Characteristics used to classify stars include color, temperature, size, composition, and brightness.

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E. Top soil is fertile reason​
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Answer:

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Topsoil consists of most weathered mineral and organic material. Biological agents are also responsible for the breakdown of complex organic matter which releases simple nutrients. This process of mineralisation make soil fertile.

Explanation:

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3 years ago
Rearrange the elements in the order of increasing first ionization energy. Place the element symbol with the lowest first ioniza
Nastasia [14]

Answer:

I,Br,Cl,F

Explanation:

ionization energy decreases the farther down an element is

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3 years ago
Which type of volcano formation would typically be found under a convergent boundary?
sergij07 [2.7K]
A chain volcano would be my answer
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6) (a) Calculate the absorbance of the solution if its concentration is 0.0278 M and its molar extinction coefficient is 35.9 L/
Anvisha [2.4K]

Answer:

6) (a) 0.499; (b) 31.7 %

7) 0.15

Explanation:

6) (a) Absorbance

Beer's Law is

A = \epsilon cl\\A = \text{35.9 L&\cdot$mol$^{-1}$cm$^{-1}$} $\times$ 0.0278 mol$\cdot$L$^{-1} \times $ 0.5 cm = \mathbf{0.499}

(b) Percent transmission

A = \log {\left (\dfrac{1}{T}}\right)}\\\\\%T = 100T\\\\T = \dfrac{\%T}{100}\\\\\dfrac{1}{T} = \dfrac{100 }{\%T}\\\\A = \log \left(\dfrac{100 }{\%T} \right ) = 2 - \log \%T\\\\0.499 = 2 - \log \%T\\\\\log \%T = 2 - 0.499 = 1.501\\\\\%T = 10^{1.501} = \mathbf{31.7}

7) Absorbance

A = \log \left (\dfrac{I_{0}}{I} \right ) = \log \left (\dfrac{I_{0}}{0.70I_{0}} \right ) = \log \left (\dfrac{1}{0.70} \right ) = -\log(0.70) = \mathbf{0.15}}

8 0
3 years ago
A gas mixture contains 88 grams of oxygen gas, 88 grams of nitrogen gas, and 12 grams of nitrogen dioxide gas,
emmainna [20.7K]
BROO DEE YOU ALREADY KNOW WHAT IS STOP DA CAP, o.81
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