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babunello [35]
3 years ago
10

Plzz help me well mark brainliest if you are correct

Chemistry
2 answers:
tia_tia [17]3 years ago
6 0

Answer:

A. non renewable energy sources cannot be used over again and renewable energy sources can be used again

ruslelena [56]3 years ago
4 0

Answer:

A. Nonrenewable energy sources cannot be used over again. Renewable energy sources can be used again.

Explanation:

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Amateur radio operators in the United States can transmit on several bands. One of those bands consists of radio waves with a wa
zloy xaker [14]

Answer:

1.5×10⁷ Hz

Explanation:

From the question given above, the following data were obtained:

Wavelength of radio wave (λ) = 20 m

Frequency (f) =?

Frequency and wavelength of a wave are related by the following equation:

v = λf

Where:

'v' is the velocity of electromagnetic wave.

'λ' is the wavelength

'f' is the frequency.

With the above formula, we can obtain the frequency of the radio wave as illustrated below:

Wavelength of radio wave (λ) = 20 m

Velocity (v) = 3×10⁸ m/s

Frequency (f) =?

v = λf

3×10⁸ = 20 × f

Divide both side by 20

f = 3×10⁸ / 20

f = 1.5×10⁷ Hz

Thus the frequency of the radio wave is 1.5×10⁷ Hz

5 0
3 years ago
The "dots" in a electron dot structure (Lewis Dot) represent the following:
sashaice [31]

Answer:

the statement is true.....

7 0
3 years ago
How much of glucose (C6H1206) is needed to make 1 L of a 1-M solution? Use details to support your answer.
Yakvenalex [24]

Answer:

200 g C₆H₁₂O₆

General Formulas and Concepts:

<u>Chemistry - Solutions</u>

  • Reading a Periodic Table
  • Using Dimensional Analysis
  • Molarity = moles of solute / liters of solution

Explanation:

<u>Step 1: Define</u>

1 M C₆H₁₂O₆

1 L of solution

<u>Step 2: Identify Conversions</u>

Molar Mass of C - 12.01 g/mol

Molar Mass of H - 1.01 g/mol

Molar Mass of O - 16.00 g/mol

Molar mass of C₆H₁₂O₆ - 6(12.01) + 12(1.01) + 6(16.00) = 180.18 g/mol

<u>Step 3: Find moles of solute</u>

1 M C₆H₁₂O₆ = x mol C₆H₁₂O₆ / 1 L

x = 1 mol C₆H₁₂O₆

<u>Step 4: Convert</u>

<u />1 \ mol \ C_6H_{12}O_6(\frac{180.18 \ g \ C_6H_{12}O_6}{1 \ mol \ C_6H_{12}O_6} ) = 180.18 g C₆H₁₂O₆

<u>Step 5: Check</u>

<em>We are given 1 sig figs. Follow sig fig rules and round.</em>

180.18 g C₆H₁₂O₆ ≈ 200 g C₆H₁₂O₆

3 0
3 years ago
What is the proper value for C in the above table.<br> A. 28<br> B. 30<br> C. 32<br> D. 65
Alex Ar [27]

Answer:

28

Explanation:

electron = atomic number - charge(if the charge is positive and addition if the charge is negative)

electron = 30 - 2

electron = 28

8 0
3 years ago
Sequence specific dna binding proteins recognize the nucleotide sequence of double-stranded dna primarily by forming non-covalen
adoni [48]

Sequence specific dna binding proteins recognize the nucleotide sequence of double-stranded dna primarily by forming non-covalent bonds with <u>Chemical groups on the edges of paired bases within the major groove.</u>

<u></u>

What Are DNA-Binding Proteins?

DNA is the blueprint for the cell. It contains information that codes for all of our traits. Essentially, our DNA is what makes us, us. But, DNA doesn't do this in isolation. There are thousands of proteins in our cells that help modulate DNA's functions. These proteins are called DNA-binding proteins, because they attach to DNA.

DNA binding proteins do many jobs including controlling protein production, regulating cell growth and division, and storing DNA inside the nucleus. Thus, if DNA is the blueprint to build the human body, then DNA-binding proteins are the parts of the cell that read and interpret the instructions to actually create and maintain the body. Let's look at the different types of DNA-binding proteins and examples of each.

To learn more about DNA-Binding Proteins

brainly.com/question/13692821

#SPJ4

4 0
2 years ago
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