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3 years ago

What 4 words make up the acronym for NASA.

Chemistry

2 answers:

Inga [223]3 years ago

6 0

The word NASA stands National Aeronautics and Space Administration

Hope this helps!

Nonamiya [84]3 years ago

5 0

If you mean what the abbreviation stands for, NASA means National Aeronautics and Space Administration. Hope this helps!!

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What can be a catchphrase for cobalt if it were a superhero?

creativ13 [48]

Answer:lumerman.com › catchphrases › catchphrase

Welcome true believers! The first step to being a superhero is to have a superhero catchphrase to yell out ... I am Danger Boy, the Mighty, Loud, Confidant of Might!!! 02/23/21 ... I am cobalt, the Dynamic, Unbeatable, Hero of Hono

Explanation:

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3 years ago

Which method would be best to separate a mixture of sand and gravel?

solniwko [45]

Here, as they both are physical things without any magnetic property & density difference, screening would be best.

In short, Your Answer would be Option C

Hope this helps!

7 0

3 years ago

Read 2 more answers

If you increase the solute amount but keep the solution volume the same what

solmaris [256]

Answer: Molarity increases

Explanation:

Molarity, also known as concentration in moles/dm3 or g/dm3, is calculated by dividing the amount of solute dissolved by the volume of solvent. So, Molarity (c) = amount of solute (n) / volume (v)

i.e c = n/v

Hence, molarity is directly proportional to the amount of solute dissolved, and inversely proportional to the volume of solvent.

Thus, at same volume, any increase in solute amount increases molarity while a decrease will also decreases molarity.

4 0

3 years ago

What atom has 35 protons and 47 neutrons ?

svet-max [94.6K]

Answer:

Bromine

Explanation:

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3 years ago

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The CRC Handbook, a large reference book of chemical and physical data, lists two isotopes of indium (). The atomic mass of 4.28

ivanzaharov [21]

Answer: The mass of second isotope of indium is 114.904 amu

Explanation:

Average atomic mass of an element is defined as the sum of masses of each isotope each multiplied by their natural fractional abundance.

Formula used to calculate average atomic mass follows:

.....(1)

Let the mass of isotope 2 of indium be 'x'

For isotope 1:

Mass of isotope 1 = 112.904 amu

Percentage abundance of isotope 1 = 4.28 %

Fractional abundance of isotope 1 = 0.0428

For isotope 2:

Mass of isotope 2 = x amu

Percentage abundance of isotope 2 = [100 - 4.28] = 95.72 %

Fractional abundance of isotope 2 = 0.9572

Average atomic mass of indium = 114.818 amu

Putting values in equation 1, we get:

$114.818=[(112.904\times 0.0428)+(x\times 0.9572)]\\\\x=114.904amu$

Hence, the mass of second isotope of indium is 114.904 amu

4 0

3 years ago