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3 years ago

What international body of chemists has decided the name of 6 new elements?

Chemistry

2 answers:

nekit [7.7K]3 years ago

8 0

<h2>Answer:</h2>

<u>The names were granted by IUPAC</u>

<h2>Explanation:</h2>

The International Union of Pure and Applied Chemistry (IUPAC) is an international, non-governmental organization whose purpose is to address issues in the chemical sciences. Every element that is newly discovered or synthesized in lab is checked and regulated by IUPAC and then it is named . Names that follow IUPAC rules are known as systematic names, or IUPAC names. IUPAC is also responsible for the nomenclature of elements.

Westkost [7]3 years ago

7 0

<span>International Union of Pure and Applied Chemistry</span>

Subject to confirmation by the union's members at a meeting in Geneva next August [1997], these will be the names of the six new elements: Element 104, Rutherfordium<span> (symbol Rf); Element 105, </span>Dubnium<span> (symbol Db); Element 106, </span>Seaborgium<span> (symbol Sg); Element 107, </span>Bohrium<span> (symbol Bh); Element 108, </span>Hassium<span> (symbol Hs), bol Mt).</span>

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If it takes a force of 60 Newtons to move an elephant, then a person who supplies a force of 70 Newtons will be able to move it.

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Answer: False

Explanation:

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3 years ago

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After an investigation, what do scientists often do?

den301095 [7]

Record observations, pose a question, create a test for an individual variable, test, come to a conclusion

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4 years ago

Once the sun's energy reaches the earth's atmosphere through radiation, it is circulated within the atmosphere and oceans throug

Levart [38]

B) convection

Explanation:

Once the sun's energy reaches the earth's atmosphere by radiation, it is circulated within the atmosphere and oceans through convection.

The energy of the sun on earth is moved between the ocean and the atmosphere by air around us.

Heat transfer in fluids is by convection.
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This moves the energy of the sun between the atmosphere and the ocean surface.

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4 years ago

2NO (g) + O2 (g) →2NO2 (g) At equilibrium [NO] = 2.4 × 10 -3 M, [O2] = 1.4 × 10 -4 M, and [NO2] = 0.95 M.

azamat

Answer:

$K=1.12x10^9$

Explanation:

Hello there!

Unfortunately, the question is not given in the question; however, it is possible for us to compute the equilibrium constant as the problem is providing the concentrations at equilibrium. Thus, we first set up the equilibrium expression as products/reactants:

$K=\frac{[NO_2]^2}{[NO]^2[O_2]}$

Then, we plug in the concentrations at equilibrium to obtain the equilibrium constant as follows:

$K=\frac{(0.95)^2}{(0.0024)^2(0.00014)}\\\\K=1.12x10^9$

In addition, we can infer this is a reaction that predominantly tends to the product (NO2) as K>>>>1.

Best regards!

4 0

3 years ago

Derivative for tan(x)

Maksim231197 [3]

Answer:

sec² (x)

Explanation:

Use the trigonometric ratio definition of the tangent function and the quotient rule.

tan(x) = sin(x) / cos(x)

Quotient rule: the derivative of a quotient is:

[the denominator × the derivative of the numerator less the numerator × the derivative of the denominator] / [denominator]²

(f/g)' = [ g×f' - f×g'] / g²

So,

tan(x)' = [ sin(x) / cos(x)]'

[ sin(x) / cos(x)]' = [ cos(x) sin(x)' - sin(x) cos(x)' ] / [cos(x)]²

= [ cos(x)cos(x) + sin(x) sin(x) ] / [ cos(x)]²

= [ cos²(x) + sin²(x) ] / cos²(x)

= 1 / cos² (x)

= sec² (x)

The result is that the derivative of tan(x) is sec² (x)

4 0

3 years ago