The smallest particle an element can be divided into is the A electron B neutron C isotope D atom

Arrange the steps in order to describe how photons and carbon dioxide contribute to the warming of earth

adell [148]

Answer:

The steps are arranged in the following order, describing how carbon dioxide and photons impact the earth's warming.

Explanation:

The sequence is in the following order;

The sun radiated sunlight (visible) photons
Photons from the sun strike the earth and become infrared photons
Earth radiates infrared photons into the atmosphere
CO2 in the atmosphere absorb infrared photons
CO2 in the atmosphere emit infrared photons back towards earth

Carbon dioxide (CO2) molecules can absorb energy from infrared (IR) radiation. Due to vibrations caused by this absorption, the CO2 molecules later release extra energy by emitting another infrared photon.

This ability of CO2 molecules to absorb and re-emit infrared energy is what makes it an effective heat-trapping greenhouse gas.

5 0

4 years ago

Scientists developed a device capable of lowering temperatures in order to slow molecular motion to almost a complete stop. Whic

seropon [69]

Answer:

273k

Explanation:

Soooo... This is a complicated problem.

I dunno. Like... Is this a trick question? Trivia, maybe?

Nahhhhh...

It's just not telling us facts...SOME facts, but we need to use past learning to help us.

FIRST of all, what the heck does K even mean?

Is this a memo? A demo? A KO?

Okay, it's nither of these things.

So, let me tell you what the "K" means.

The K means "Kelvin" which is basically a word form for "-"

I AM NOT MAKING A FACE. IT'S THE WORD FORM FOR MINUS. STOP LAUGHING!!!!

And so... To bring objects to a COMPLEETE SKRRRRRRRRRRRRRRRRRRRRRRT...

It will need to be -273.

This means that the answer is 273k.

Which reminds me, Ima play 2k.

And ima rap to-day.

And now I'm being lame.

Just answer the question :/

3 0

3 years ago

Calculate the weight percent of ascorbic acid in a tablet of Vitamin C from the following data:A 80 mg sample of a crushed Vitam

Lina20 [59]

Answer:

The Answer is 88%

Explanation:

The balanced ionic equation of the reaction

$IO^{3- }+ 8 I^- + 6 H^+ => 3 I^{3- }+ 3 H_2O$

$I^{3-} + 2 S_2O_3^{2-} => 3 I^- + S_4O_6^{2-}$

$C_6H_8O_6 + I^{3- }+ H_2O => C_6H_6O_6 + 3 I^- + 2 H^+$

Looking at the above reactions

The original number of moles of $I^{3-}$ = 3 × number of moles of $IO^{3-}$

= 3 × volume × concentration of $KIO_3$

Note: The formula for number of moles is volume × concentration

$=3 * \frac{40}{1000} * 0.00653 =0.000784$ mol

The number of moles of $I^{3-}$ left after its reaction with ascorbic acid

= $\frac{1}{2}$ x moles of $S_2O_3^{2-}$

= $\frac{1}{2}$ x volume x concentration of $S_2O_3^{2-}$

$= \frac{1}{2} * \frac{15}{1000} * 0.0510 =0.000383 \ mol$

Note: The division by 1000 is to convert mill liter to liter

Moles of ascorbic acid = moles of $I^{3-}$ reacted

$= initial \ moles \ of \ I^{3-} \ - remaining \ moles \ of \ I^{3-}$

$=0.000784 - 0.000383$

$=0.000401 \ mols$

$Mass = moles \ * molar \ mass$

Hence

Mass of ascorbic acid = moles of ascorbic acid × molar mass of ascorbic acid

$= 0.000401* 176.12 = 0.07055\ g$

$= 70.55\ mg$

Weight% of ascorbic acid = mass of ascorbic acid/mass of sample x 100%

= 70.55/80 × 100%

= 88.1%

3 0

4 years ago

PLEASE HELP•Your body has organ systems that perform the functions you need to live. Where the body has specialized organs withi

jek_recluse [69]

An organelle could be the nucleus of a cell.

The nucleus of a cell would be comparable to the nervous system in the body, which is considered an organ system.

Hope this helps!

7 0

4 years ago

Read 2 more answers

Bruh i dont have a question what up ?

Akimi4 [234]

Answer:

?

Explanation:

8 0

3 years ago

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