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Naddika [18.5K]
3 years ago
9

The higher up you go, it gets harder to breathe because air is less dense which means that there are ____________ molecules of o

xygen to breathe into our lungs.
PLEASE HELP!
Chemistry
2 answers:
Papessa [141]3 years ago
7 0
Less is the word to ur question
mamaluj [8]3 years ago
7 0
The answer should be fewer based on the question. The oxygen molecules in the air are spread more thinly and therefore you take in less oxygen molecules per breath. Hope this helps!
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If the first reaction used 0.5 g of copper then how many grams of copper will be produced in the last reaction?
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Enter a chemical equation for NaOH(aq) showing how it is an acid or a base according to the Arrhenius definition. Consider that
yuradex [85]

Answer:

NaOH(aq) is a Base.

Explanation:

Those substances which give or release OH^{-} ions in aqueous solution are called as the Arrhenius Bases.

In the aqueous solution, NaOH dissociates as follows -

NaOH^{} ↔ Na^{+}  + OH^{-}

If it reacts with a strong acid HCl, the chemical equation for this reaction will be as follows -

HCl + NaOH = NaCl + H_{2} O

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Which statement best describes displacement? Check all that apply
Snowcat [4.5K]
ANSWER:
DISPLACEMENT IS THE SHORTEST PATH LENGTH COVERED BY AN OBJECT.
IT IS A VECTOR QUANTITY AS IT NEEDS BOTH DIRECTION AND MAGNITUDE TO MEASURE IT.
HOPE IT HELPS!!!
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3 0
3 years ago
A 10.0 L balloon contains helium gas at a pressure of 655 mmHg. What is the final pressure, in millimeters of mercury, if the fi
joja [24]

Answer:

474.64mmHg

Explanation:

From the question given, we obtained the following:

V1 = 10L

P1 = 655mmHg

V2 = 13.8L

P2 =?

P1V1 = P2V2

10 x 655 = P2 x 13.8

Divide both side by the coefficient P2 i.e 13.8

P2 = (10 x 655) / 13.8

P2 = 474.64mmHg

Therefore, the new pressure will be 474.64mmHg

7 0
3 years ago
balance the reaction equation describing the biological formation of glucose (c6h12o6) with the lowest set of whole number coeff
Ivan

The given reaction equation for photosynthesis whereby, in the presence of light energy from the Sun and chlorophyll, plants synthesize glucose from carbon dioxide and water.  As water is present as a reactant, it doesn’t also appear on the ’products’ side of the equation. So:

Water + carbon dioxide > glucose + oxygen.

As glucose contains 6 carbon atoms, these must be obtained from 6 molecules of CO2. So, overall:

6CO2(g) + 6H2O(l) > C6H12O6(aq) + 6O2(g).

What is photosynthesis?

Photosynthesis is the process  plants and other organisms use to convert light energy into chemical energy, which is later released through cellular respiration to power the activity of the organism.

Therefore, This is the equation for photosynthesis whereby, in the presence of light energy from the Sun and chlorophyll, plants synthesize glucose from carbon dioxide and water.

To learn more about photosynthesis refer the given link:-

brainly.com/question/26071939

#SPJ4

4 0
1 year ago
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