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2 years ago

What are the similarities and differences between living on Earth versus living in space?

Chemistry

2 answers:

scZoUnD [109]2 years ago

6 0

I don’t know but I really need answers I don’t know but I really need answers

alina1380 [7]2 years ago

4 0

Answer:

Differences

• Space is everything in the universe beyond the top of Earth's atmosphere - The moon, Stars, Milky way, etc.

• In space, no one can hear you scream. This is because there is no air in space, i.e, it's vacuum.

• Earth is a planet on solar system. It is the only planet where life exists!!

• Earth is also called "blue sky" cause it has 75% water.

Similarities

•They need oxygen for survival: Man, animals in earth and space need oxygen for survival.

•Water is also need to stay alive.

•Food is very paramount to both man, animal s and organisms.

•Shelter, we all ned a place to lay our head in other to be safe.

•Air everywhere in the atmosphere.

•Water, air, food and shelter are available on earth but their availability differs in space.

•Astronaut need to bring everything one need in space with him or her from Earth. They often recycle the things they bring.

Hope it helps :)

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Hemoglobin in your blood does not use elemental iron. It uses iron in the form of Fe2+(aq).

valina [46]

Explanation:

Balanced chemical reaction equation will be as follows.

$2Fe^{2+}(aq) + 2H^{+}(aq) \rightleftharpoons 2Fe^{3+}(aq) + H_{2}(g)$

In human body, the neutral iron changes into $Fe^{2+}$ (aq) cation. There will be an oxidation-half reaction and a reduction-half reaction. Equations for this reaction are as follows.

Oxidation: 2Fe^{2+}(aq) \rightleftharpoons 2Fe^{3+}(aq) + 2e^{-}[/tex] .... (1)

Reduction: $2H^{+}(aq) + 2e^{-} \rightleftharpoons H_{2}(g)$ ...... (2)

On adding both equation (1) and (2), the overall reaction equation will be as follows.

$2Fe^{2+}(aq) + 2H^{+}(aq) \rightleftharpoons 2Fe^{3+}(aq) + H_{2}(g)$

Therefore, neutral iron is a part of Heme - b group of Hemoglobin and in an aqueous solution it dissolutes as a part of Heme group. Hence, then it becomes an $Fe^{2+}$ cation.

3 0

3 years ago

Calculate the molar mass for oxygen gas

Sladkaya [172]

For example, the atomic mass of an oxygen atom is 16.00 amu; that means the molar mass of an oxygen atom is 16.00 g/mol. Further, if you have 16.00 grams of oxygen atoms, you know from the definition of a mole that your sample contains 6.022 x 10^23 oxygen atoms.

8 0

3 years ago

A 0. 1220 g vitamin c tablet was dissolved in acid. This required 11. 50 ml of 0. 01740 m kio3 to reach the endpoint. Calculate

kodGreya [7K]

86.66 % by weight of ascorbic acid in the tablet, when 0. 1220 g vitamin c tablet was dissolved in acid. This required 11. 50 ml of 0. 01740 m $KIO_3$ to reach the endpoint.

<h3>What is a balanced chemical equation?</h3>

A balanced chemical reaction is an equation that has equal numbers of each type of atom on both sides of the arrow.

$3C_6H_80_6 +3I_2 +KIO_3 +5KI +6H^+$ → $3C_6H_60_6 +6I^- +3I_2+6K^+ +3H_2O$

So, the balanced chemical equation for the reaction will be:

$3C_6H_8O_6 +KIO_3$ → $3C_6H_6O_6 +KI + 3H_2O$

That means, 3 mol of of ascorbic acid reacts with 1 mol of $KIO_3$

Moles of $KIO_3$ available is 0.0174 X 0.0115 =0.0002001 mol

Moles of ascorbic acid to be yielded should be 3 X 0.0002001 =0.0006003

So, percent mass of ascorbic acid in the tablet will be:

(0.1057 / 0.1220) X 100 %

=86.66 %

Hence, the third option is the correct answer.

Learn more about balanced chemical equations here:

brainly.com/question/26750249

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1 year ago

"What quantitative measurement and qualitative observations can be made about the interactions of matter and energy?" can someon

kirza4 [7]

Quantitative measurements are numerical values, they involve amounts and units like measuring things. Qualitative observations appeal to the five senses, like what does the interaction look and sound like

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3 years ago

How are sea slugs able to make their own food like green algae?

Nadusha1986 [10]

Answer: my answer I’d D! I’m sorry if this did not help you

Explanation: =)

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3 years ago

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