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labwork [276]
3 years ago
5

The kilogram is the SI unit for mass

Chemistry
2 answers:
Leno4ka [110]3 years ago
6 0

Answer:

yes

Explanation:

SI unit of mass is kilogram.

Elodia [21]3 years ago
4 0

Answer:

kg is the S.I unit for mass

Explanation:

Mass is the amount of matter in the substance and is measured with the help of the UNIT (S.I system) Kg.

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Enthalpy change is the
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I believe is A

Explanation:

Enthalpy change is the name given to the amount of heat evolved or absorbed in a reaction carried out at constant pressure.

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3 years ago
How many atoms are in 6.3 mol Zn
san4es73 [151]

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3.8x1024atoms Zn

Explanation:

is the answer

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2 years ago
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What is the normality of a solution containing 14.8 g of Ca(OH)₂ in 250.0 mL?
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Explanation:Are You From Milo?

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3 years ago
What is the concentration of hydronium ion in a 0.121 M HCl solution?
kogti [31]

Answer:

C) 0.121 M

Explanation:

HCl + H₂O = H₃O⁺ + OH⁻

.121M              .121M

HCl is a strong acid . It will dissociate almost 100 % so the concentration of acid and hydronium ion formed will be equal . It is to be noted that hydronium ion is formed due to association of H⁺ and H₂O . H⁺ is formed due to ionisation of HCl .

So concentrtion of hydronium ion ( H₃O⁺ ) will be .121 M.

7 0
3 years ago
Nitric oxide (NO) is a gaseous molecule with lipid solu- bility similar to that of O2 and CO2. Endothelial cells lining arteries
svp [43]

Answer:

NO passively diffuses down its concentration gradient through the endothelial cell plasma membrane out of the cell and then passiveley diffuses through the plasma membrane into the cytoplasm of the smooth muscle cell, where it acts to decrease contraction.

Explanation:

Hello,

At first, we must consider that O_2 and CO_2, NO passively diffuses through membranes. As it is produced by an enzyme and accumulates in the endothelial cell cytosol, NO passively diffuses down its concentration gradient through the endothelial cell plasma membrane out of the cell and then passiveley diffuses through the plasma membrane into the cytoplasm of the smooth muscle cell, where it acts to decrease contraction.

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