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Triss [41]
3 years ago
5

Which statement best describes how to read a reaction pathway graph for an endothermic reaction?

Chemistry
1 answer:
fgiga [73]3 years ago
6 0
4 becuase they absorb a little amount
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The human body is 60% water. Water has a molar mass of 18.02 g/mol. If a person weighs 75 kg (75,000 grams), how many moles of w
Katena32 [7]

Answer:

Woah thats a lot of calculating but the answer is 210.

Explanation:

Im really sorry if im wrong but im not very good with math cause I was just trying to help.

3 0
3 years ago
What is 786,000 in scientific notation
o-na [289]
The scientific form is a\times 10^x \left \{ {{a\ \textgreater \ 0} \atop {a\ \textless \ 10}} \right. So, the form of scientific notation is 786,000 = 7.86 \times 10^5
8 0
3 years ago
Read 2 more answers
(02.02 MC)
vova2212 [387]

Answer:

Mechanical weathering will cause wearing down of rocks.

Explanation:

All the other choices aren't suitable for a dry climate where sand storms occur.

8 0
3 years ago
Adenosine triphosphate (ATP) is the main energy currency used in cells. ATP hydrolysis is coupled with unfavorable reactions, ma
kotegsom [21]

Answer:

<em>Thioesters- the Sulfur-Carbon bond is hydrolyzed, e.g. AcetylCoA</em>

<em>Reduced cofactor- These compounds accept electrons during the oxidation of substrates and energy is released when they are oxidized, e.g. Ubiquinol</em>

<em>Phosphorylated compounds- These compounds yield H₂P0₄⁻ upon hydrolysis, e.g. Phosphocreatine</em>

Explanation:

<em>Thioesters</em><em> are esters in which the linking oxygen atom is replaced by a sulphur atom. </em>They are the product of esterification between a carboxylic acid and a sulfhydryl group (thiol). They have the functional group R–S–CO–R'. Thioesters are common intermediates in many biosynthetic reactions. Examples include malonyl-CoA, acetyl-CoA, and propionyl-CoA. <em>In the hydrolysis of thioesters, the sulfur-carbon bond is hydrolyzed.</em>

<em>Cofactors</em><em> can be either organic or inorganic molecules that are required by enzymes to function. Cofactors can be oxidized or reduced for the enzymes to catalyze the reactions.</em>  Examples include, NAD, FAD, NADP, <em>Coenzyme Q₁₀.</em> Coenzyme Q₁₀ exists in three redox states, fully oxidized, partially reduced, and fully reduced. Ubiquinol is the reduced (electron-rich) form of coenzyme Q₁₀. Coenzyme Q₁₀ is vital for proper transfer of electrons within the mitochondrial oxidative respiratory chain, whose main function is to produce adenosine triphosphate (ATP). <em>These compounds accept electrons during the oxidation of substrates and energy is released when they are oxidized. </em>

Phosphorylated compounds are compounds with a phosphoryl group (PO₃²⁻) attached to its molecules. <em>These compounds yield an inorganic phosphate (H₂P0₄⁻) upon hydrolysis</em>. Phosphorylation is especially important for protein function as this modification activates or deactivates almost half of the enzymes, thereby regulating their function. Examples include, glucose-1-phosphate, phosphoserine, phosphocreatine, etc.

4 0
3 years ago
4. 200 mL of a 5.6M solution to BaCl_2 have 750 mL of water added to it. What is the new concentration?
IceJOKER [234]

Answer:

4. 1.18 mol·L⁻¹

14. See below.

Explanation:

4. Dilution calculation

V₁c₁ = V₂c₂

Data:

V₁ = 200 mL; c₁ = 5.6 mol·L⁻¹

V₂ = 950 mL; c₂ = ?

Calculation:

c₂ = c₁ × V₁/V₂

c₂ = 5.6 mol·L⁻¹ × (200/950) = 1.18 mol·L⁻¹

The new concentration is 1.18 mol·L⁻¹ .

14. Boyle's Law graphs

We can write Boyle's Law as

pV = k or p = k/V or V= k/p

p and V are inversely related.

(a) As pressure increases, volume decreases. Thus, a graph of V vs p is a hyperbola.

(b) p = k/V =k(1/V)

 1/V = (1/k)p

   y  =   m x  + 0

A graph of 1/V vs p is a straight line.

4 0
3 years ago
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