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dsp73
3 years ago
11

Which best specifies the function of hydrates in a wound dressing?

Chemistry
1 answer:
max2010maxim [7]3 years ago
3 0
The function of hydrates in a wound dressing is to promote healing by keeping wound areas moist and sterile.
Hydration is essential in the wound healing process, as water is the primary way that oxygen and nutrients are delivered directly to the wound bed. Dehydration is one of the most common reasons why cell function becomes disrupted. Lack of fluids would therefore delay all the aspects of wound healing. 
 
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ra1l [238]

Answer:

b. . the element symbol

6 0
3 years ago
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The process in beer production that produces carbon dioxide and ethanol is known as
arsen [322]

Answer:

Fermentation!

Explanation:

4 0
4 years ago
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Stoichiometry is best defined as the
Oxana [17]

Stoichiometry is “quantitative relationship” among the “reactants” and the “products” in a “chemical reaction”.

<u>Explanation</u>:  

In stoichiometry “stoicheion” means element and “metron” means measure in Greek. The stoichiometric calculation depends upon “stoichiometric coefficients” in a “chemical equation” which can be explained as the “number of moles” of each substance (reactants or products). Stoichiometric calculation is done as follows:

For example reaction between nitrogen and hydrogen to form ammonia as

\mathrm{N}_{2}(\mathrm{g})+3 \mathrm{H}_{2}(\mathrm{g}) \longrightarrow 2 \mathrm{NH}_{3}(\mathrm{g})

Here stoichiometric coefficients show that “one molecule of nitrogen” reacts with “three molecules of hydrogen” to form “two molecules of ammonia”. Multiplying Avogadro number 6.022 \times 10^{23} to no of molecules in equation:

\text { For } \mathrm{N}_{2}: 1 \times 6.022 \times 10^{23}=1 \mathrm{mol}

\text { For } 3 \mathrm{H}_{2}: 3 \times 6.022 \times 10^{23}=3 \mathrm{mol}

\text { For } 2 \mathrm{NH}_{3}: 2 \times 6.022 \times 10^{23}=2 \mathrm{mol}

Taking molar masses into consideration:  

\text { For } \mathrm{N}_{2}: 1 \times 28.0=28.0 \mathrm{gm}

\text { For } 3 \mathrm{H}_{2}: 3 \times 2=6.0 \mathrm{gm}

\text { For } 2 \mathrm{NH}_{3}: 2 \times 17=34 \mathrm{gm}

Hence balanced equation gives stoichiometric coefficients which gives proportion by moles.

8 0
3 years ago
PLEASE HELP ME ASAP!!!! PLEASE!!!!!!!!!! I will give brainliest and 20 points!! PLEASE!
Vika [28.1K]
#1
<span>The rate of diffusion of a gas is inversely proportional to the square root of its molecular weight. 
#2
shape, molecular weight. I don't know for sure though
#3
</span>O2, N2, Ar, H2O vapor
5 0
3 years ago
When elements combine to form compounds, chemical bonds form between the
photoshop1234 [79]

Answer:

electrons

Explanation:

When elements combine to form compounds, chemical bonds form between the  atoms. Bonds form when atoms share or exchange  electrons in a way that gives each atom a complete outer shell.

For example:

Ionic bond:

It is the bond which is formed by the transfer of electron from one atom to the atom of another element.  

For example:

Sodium chloride is ionic compound. The electronegativity of chlorine is 3.16 and for sodium is 0.93. There is large difference is present. That's why electron from sodium is transfer to the chlorine. Sodium becomes positive and chlorine becomes negative ion. Both atoms are bonded together electrostatic attraction occur between anion and cations and have complete octet.

Covalent bond:

It is formed by the sharing of electron pair between bonded atoms.  

For example:

In water the electronegativity of oxygen is 3.44 and hydrogen is 2.2. That's why electron pair attracted more towards oxygen, thus oxygen becomes partial negative and hydrogen becomes partial positive.  Both have complete octet.

7 0
3 years ago
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