Answer:
- When looking at the plot G versus reaction coordinate, the profile for a biological catalyst (e.g. an enzyme) will have <u>about the same</u> transition state(s), with an overall activation energy that is <u>low </u>in comparison to the uncatalyzed reaction.
- Enzymes have a <u>high </u>molecular weight and are <u>organic</u> compounds, while inorganic catalysts often have a <u>low</u> molecular weight and are <u>inorganic</u> compounds.
- When comparing rates, enzymes are typically several times <u>faster</u> than inorganic catalysts.
Explanation:
Enzymes are organic molecules capable of producing a faster chemical reaction. In an enzymatic reaction the transition state -corresponding to the state in which the substrates or products are equally likely- tends to be the same, while the energy required for the reaction decreases.
The differences between an enzyme and an inorganic catalyst are structural and functional:
- <em>Enzymes are organic and of high molecular weight and catalysts are inorganic and of low molecular weight.
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- <em>An enzyme can change its structure during a reaction, while the configuration of a catalyst is the same.
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- <em>The reaction catalyzed by an enzyme is about 10⁶ to 10¹² times faster than with a catalyst.</em>
Answer:
a)567mg
b)0.567 grams
Explanation:
There are 7 days in a week, so we multiply the number of weeks by the number of daily dosage.
81mg*7=567mg
1 gram is 1000 mg
we divide 567 by 1000 to get the value in grams
When Pb(OH)₂ dissolves it dissociates as follows;
Pb(OH)₂ ---> Pb²⁺ + 2OH⁻
molar solubility is the number of moles of compound that can be dissolved in 1 L of solution.
if molar solubility of Pb(OH)₂ is x then molar solubility of Pb²⁺ is x and OH⁻ is 2x
the formula for solubility product constant is as follows;
ksp = [Pb²⁺][OH⁻]²
ksp = (x)(2x)²
ksp = 4x³
ksp = 1.43 x 10⁻²⁰
4x³ = 1.43 x 10⁻²⁰
x = 1.53 x 10⁻⁷ M
molar solubility of Pb(OH)₂ is 1.53 x 10⁻⁷ M
molar mass is 241.2 g/mol
solubility of Pb(OH)₂ is 1.53 x 10⁻⁷ M x 241.2 g/mol = 3.69 x 10⁻⁵ g/L
Answer:
The atoms have been rearranged. To put it another way, it created a new substance.
Neutrons the way this question is setup the atom would not be able to be neutral
