Describe how the catalyst, zymase speeds up the reaction shown
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Describe how the catalyst, zymase speeds up the reaction shown
The catalyst zymase speeds up the reaction by catalyzing the fermentation of sugar into ethanol and carbon dioxide. It is mostly present in yeasts.
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In Experiment 1, the density of pure ethanol was found to be:Question 1 options:less than 0.793 g/mL.0.793 g/mL.0.999 g/mL.greater than 0.999 g/mL.
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What is true about the metals in group 1A, 2A, 3A?a)all form ions with negative charges b)all have ions with a 1+ charge c)gain electrons when they form ions d)lose electrons when they form ions
Si un alcohol primario se calienta a una temperatura mayor de 140-C en presencia de H2SO4 concentrado, que es el catalizador, se obtiene el alqueno correspondiente más agua. Si se hace la anterior reacción con el alcohol 1 -butilico, la ecuación que representa el proceso es
2CO + O2 → 2CO2
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the ratio between CO and CO2 is 2 : 2 ( or 1 : 1) so we would get 0.357 mole of CO2 ( 100% yield)
mass CO2 = 0.357 mol x 44.0098 g/mol = 15.7 g ( theoretical yield)
% yield = 12.8 x 100 / 15.7 = 81.5
Hope this helps.
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Answer : The amount of heat needed are, 8464.5 J
Explanation :
Formula used :
where,
q = heat gained = ?
m = mass of water = 45.0 g
c = specific heat of water =
= final temperature =
= initial temperature =
Now put all the given values in the above formula, we get:
Thus, the amount of heat needed are, 8464.5 J
m is the mass of the water, Cp is the specific heat of water and ∆T is the change in temperature of the water (final-initial temperature). q is the energy involved in the reaction, measured in joules.
q=(45.0) x (4.184 Jg^-1/°C^-1) x (45°C)
q=8472.6 Joules
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Answer:
Shielded Twisted Pair (STP) cable includes an additional layer of shielding to reduce the incidence of crosstalk, which is electromagnetic interference or signal bleed between adjacent pairs of twisted cables. This shielding is usually made of metal foil or braided wire and is wrapped around the individual twisted pairs or the entire cable. Here are the key components added within STP to reduce crosstalk:
Explanation:
1.Shielding: STP cables have a metal shield that surrounds the twisted pairs or the entire cable. This shield acts as a barrier to block external electromagnetic interference (EMI) and also reduces the emission of electromagnetic interference from the cable itself.
2.Metal Foil or Braided Wire: The shielding material can be a thin metal foil or a braided wire mesh. These materials are highly conductive and capable of efficiently diverting and grounding any electromagnetic interference that may affect the cable.
3.Grounding: To be effective, the shield in STP cables needs to be properly grounded at both ends of the cable. This grounding helps in dissipating any unwanted electrical noise or interference that is captured by the shield.
4.Aluminum or Mylar Tape: Sometimes, STP cables may also have an additional layer of aluminum or Mylar tape between the shield and the twisted pairs. This tape adds an extra level of protection against interference.
The shielding in STP cables significantly reduces crosstalk and makes them suitable for environments where EMI is a concern, such as industrial settings or areas with a high concentration of electronic equipment. However, STP cables tend to be thicker and less flexible compared to Unshielded Twisted Pair (UTP) cables, which are more commonly used for standard Ethernet connections in office and home networks.
Final answer:
In a Shielded Twisted Pair Cable (STP), a shielding composed of an insulating material and a conductive layer is added. This shielding contains the electromagnetic fields within the cables thus reducing the incident of crosstalk.
Explanation:
In a Shielded Twisted Pair Cable (STP), a shielding is added to reduce the incident of crosstalk. This shielding is typically composed of an insulating material and a conductive layer, which is often made of metal foil or a braid. The shielding serves to contain the electromagnetic fields within the cables, protecting the internal wires from external influences, thereby significantly reducing the likelihood of crosstalk. For instance, in a network setting, shielding can help prevent data transmitted along one wire from being picked up by another, thus improving the quality of the transmitted signal. It's important to know that while shielding helps reduce crosstalk, it also makes the cable bulkier, and somewhat more difficult to install and manage compared to Unshielded Twisted Pair (UTP) cables.
Learn more about STP Cable Shielding here:
#SPJ11
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An anion has gained electrons and therefore has more electrons than protons. It has a negative charge.
An example if this doesn't make too much sense.
Charged Atoms: If electrons are removed from an atom, that atom becomes positively charged because it has more positive charge carriers (protons) than negative charge carriers (electrons)
These types of charged atoms are called positive ions or, cations. DEPENDING ON THE CIRCUMSTANCES, the removed electrons can remain free or they may attach themselves to another atom that can accept extra electrons. If this occurs, a negatively charged ion, or anion, is created.
I hope I made this clear enough for anyone who needed help on this. Hope this helps!!! Have a great day :)))
B) unequal heating of different parts of earth
C) differences in elevation on different landmasses
D) greenhouse gases
(no guessing please )
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sometimes the earths heating of the surface is unequal forming global wind patterns