The chemical reaction takes place when a substrate is chemically altered by an enzyme after entering the active site of the enzyme.
At the enzyme's catalytic site, which is where the reaction takes place, this chemical modification of the substrate occurs. The substrate may engage in a number of chemical reactions at the catalytic site, such as the transfer of a chemical group or the breaking or forming of chemical bonds. The enzyme and the substrate in question determine the specific kind of chemical reaction that occurs.
One or more products are produced as a result of the chemical modification of the substrate and are then released by the enzyme. The chemical is then accessible to tie and catalyze the response with extra substrate atoms.
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please help im so bad at science
a.bond energy
c. endothermic reaction
d. exothermic reaction
f.exothermic
g.endothermic
Complete the sentence:
The north pole of a magnet____ the north pole of another magnet.
-will attract
-may repel, attract, or not affect
-will not affect
-will repel
the north pole of the magnet will repel the north pole of another magnet
The pH of a solution is 9.67. Calculate [H+] for the solution
Answer:
2.14 x 10^-10 M
Explanation:
[H+] = 10^(-pH) = 10^-9.67 = 2.14 x 10^-10 M
Why does the moon have a stronger gravitational effect on the earth then the sun?
Explanation:
The tidal forces of the Moon are much stronger than the Sun's because it is so much closer to our planet, causing a much greater variation in the gravitational force from one location to another. The Sun's gravitational force, on the other hand, varies much less because the Sun is so far.
Please mark me has brainliestBlood is made up of red and white blood cells, platelets and ______.
Find the interquartile range
blood is made up of red and white blood cells, platelets and plasma
A basketball inflated to a pressure of 2.25 atm is increased in temperature from 275 K to 317 K.What will be the new pressure, in torr, if the volume remains constant?
Answer:
[tex]P_2=1971.2torr[/tex]
Explanation:
Hello there!
In this case, by recalling the Gay-Lussac's gas law, as a directly proportional relationship between pressure and temperature, we can write:
[tex]\frac{P_2}{T_2} =\frac{P_1}{T_1}[/tex]
Thus, by solving for the required final pressure, in atmospheres first, we solve for P2 as follows:
[tex]P_2 =\frac{P_1T_2}{T_1}\\\\P_2=\frac{2.25atm*317K}{275K}\\\\P_2=2.59atm[/tex]
Which in Torricelli is:
[tex]P_2=2.59atm *\frac{760torr}{1atm}\\\\P_2=1971.2torr[/tex]
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What properties can be used to identify puree substances?
Explanation:
1 it easily won't break down using any chemical
2 it is difficult to extract it using chemical process
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What volume of DI water, in mL, must you use to dissolve 30.0 g of NaOH in order to make a 1.25 M solution? mL (round to whole number)
Answer:
600mL
Explanation:
Molarity of a solution (M) = number of moles (n) ÷ volume (V)
number of moles = mass/molar mass
Molar mass of NaOH = 23 + 16 + 1
= 40g/mol
mole = 30/40
n of NaOH = 0.75mol
Using Molarity = n/V
V = number of moles ÷ molarity
V = 0.75 ÷ 1.25
V = 0.6L
In milliliters (mL), the volume of NaOH will be 0.6 × 1000
= 600mL
17. When you hold a soda can in your hand, you possess trillions and trillions of aluminum atoms. In one paragraph, using
your own words, explain how ions of aluminum atoms would generally interact based on their charges, and how that
interaction is overcome through metallic bonding to form the can that you hold.
PLEASE PUT REAL ANSWER OR I WILL REPORT YOU
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In the early 1900's, Paul Drüde came up with the "sea of electrons" metallic bonding theory by modeling metals as a mixture of atomic cores (atomic cores = positive nuclei + inner shell of electrons) and valence electrons. Metallic bonds occur among metal atoms. Whereas ionic bonds join metals to non-metals, metallic bonding joins a bulk of metal atoms. A sheet of aluminum foil and a copper wire are both places where you can see metallic bonding in action.
Metals tend to have high melting points and boiling points suggesting strong bonds between the atoms. Even a soft metal like sodium (melting point 97.8°C) melts at a considerably higher temperature than the element (neon) which precedes it in the Periodic Table. Sodium has the electronic structure 1s22s22p63s1. When sodium atoms come together, the electron in the 3s atomic orbital of one sodium atom shares space with the corresponding electron on a neighboring atom to form a molecular orbital - in much the same sort of way that a covalent bond is formed.
The difference, however, is that each sodium atom is being touched by eight other sodium atoms - and the sharing occurs between the central atom and the 3s orbitals on all of the eight other atoms. Each of these eight is in turn being touched by eight sodium atoms, which in turn are touched by eight atoms - and so on and so on, until you have taken in all the atoms in that lump of sodium. All of the 3s orbitals on all of the atoms overlap to give a vast number of molecular orbitals that extend over the whole piece of metal. There have to be huge numbers of molecular orbitals, of course, because any orbital can only hold two electrons.
The electrons can move freely within these molecular orbitals, and so each electron becomes detached from its parent atom. The electrons are said to be delocalized. The metal is held together by the strong forces of attraction between the positive nuclei and the delocalized electrons Hope this helped
Determine the products when aqueous solutions of CoCl2 and Na3PO4are reacted together.
3 of 12
Assessment: Force and Motion CBA
Four students recorded the time it took them to walk to school from their homes as shown in the table
below.
Student
1
2
3
Motion of Four Students
Distance (meters) Time (minutes)
1,100
20
1,026
19
848
16
795
15
4
Which student had the greatest average speed?
Student 1
Student 2
Student 3
Student 4
1
2
3
4
5
6
7
8
9
10
Next
When mechanical energy is transformed,
A.
potential energy remains unchanged.
B.
heat is given off.
C.
kinetic energy remains unchanged.
D.
friction is encountered.
Answer:
kinetic energy remains unchanged
define the term pure substance
Answer:
Pure substances are substances that are made up of only one kind of particles and has a fixed or constant structure. Pure substances are further classified as elements and compounds. An element is a substance that consists of only one type or kind of atom
Answer:
define the term pure substance :
A pure substance does not have to be of a single element or compound, This can either be one single element or one single compound, but every sample of this substance that you examine must contain exactly the same thing with a fixed, definite set of properties
Explanation:
I need help answer with right answer
Answer:
I think it would be D
Explanation:
The initial pressure of 0.31 moles of gas in a drum is 742 torr. If gas is added to the drum and the final pressure is 759 torr, how many moles of gas are in the drum? Hint: for this problem, you do not have an equation in the Introduction section, but based on the relationship between pressure and volume, what can you determine about the relationship between pressure and the number of moles?
Answer:
0.3171 moles
Explanation:
The computation of the number of moles of gas in the drum is shown below;
The ideal gas equation is
PV = nRT
where
P denotes the pressure of the gas
V denotes the volume of the container
n denotes the number of moles of gas
R denotes the Gas constant
T denotes the temperature
Also P proportionate to n
Now the following formula should be used
P_1 ÷ P_2 = n_1 ÷ n_2
742 ÷ 759 = 0.31 ÷ n_2
n_2 = 759 × 0.31 ÷742
= 0.3171 moles
How many Joules are required to heat 40g of water from 13°C to 40°C?
J
Answer: 1080
Explanation:
you have to subtract 40 from 13 frist then multiply the remins of the temeture with 40 and your answer is 1080
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According to the diagram above, when the north end of the Earth’s axis is tilted toward the sun, explain the suns effect on the North America.
A. North America will experience more indirect rays and shorter days
B. North America will experience more indirect rays and longer days.
C. North America will experience more direct rays and shorter days
D. North America will experience more direct rays and longer days.
Answer:
the answer is D
Explanation:
brainliest?
9. Circle the atom in each pair that has the greater ionization energy.
A) Li or Be
B) Ca or Ba
C) Na or K
D) P or Ar
E) Cl or Si
F) Li or K
A) Be
B) Ca
C) Na
D) Ar
E) Cl
F) Li
This question simply deals with ionization energy trends across the periodic table or down the group.
Ionization energy is the energy that is needed to remove an electron from its orbital around an atom in such a manner that it will no longer be associated with that same atom.
Now, from studies, it has been found that Ionization energy decreases down a group but it tends to increase as we go from the left to right going across the periodic table.
A) Li(Lithium) and Be(Berrylium) belong to the same period which is period 2 on the periodic table. Berrylium comes after berrylium in that period and as such from the rule earlier, berrylium will have the greater ionization energy.
B) Ca(Calcium) and Ba(Barium) belong to the same group 2 in the periodic table with barium further down the group. Thus, from the trend, Ca(Calcium) will have the greater ionization energy.
C) Na(Sodium) and K(Potassium) belong to the same group 1 in the periodic table with potassium further down the group. Thus, from the trend, Na(Sodium) will have the greater ionization energy.
D) P(Phosphorus) and Ar(Argon) belong to the same period which is period 3 on the periodic table. Argon comes after Phosphorus in that period and as such from the rule earlier, argon will have the greater ionization energy.
E) Cl(Chlorine) and Si(Silicon) belong to the same period which is period 3 on the periodic table. Cl(Chlorine) comes after Si(Silicon) in that period and as such from the rule earlier, Cl(Chlorine) will have the greater ionization energy.
F) Li(Lithium) and K(Potassium) belong to the same group 1 in the periodic table with potassium further down the group. Thus, from the trend, Li(Lithium) will have the greater ionization energy.
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How may moles are in 88.4 grams of Al(OH)3?
Answer:
1.133mol Al(OH)3
Explanation:
88.4/78.003 = 1.133
What is the pH of a 4.7 x 10-9 M HCl solution? *
4.67
8.33
11.21
2.93
i need to write a brief paragraph on why this lab is important, please help!! here is the question!
How can the properties of acids and bases be used to classify solutions?
Answer:
Acids and bases aqueous solutions will conduct electricity because they contain dissolved ions. Therefore acids and bases are electrolytes. strong acids and bases will be electrolytes. weak acids and bases will be weak electrolytes.
PLEASE PLEASE PLEASE HELP:
An unknown material has 389 J of heat energy added to it. If its specific heat capacity is 0.371 J/g*C and 58 g were affected, what was the temperature increase?
What is the percent composition of water found in tin (IV) oxide octahydrate?
Answer:
tin (IV) oxide octahydrate contains 8 part water
What is the percent composition of water found in tin (IV) oxide octahydrate?
A projectile is projected with an initial velocity of 40 m/s at a 45o angle to the horizontal. , calculate the total time travelled.
Answer:
5.77 s
Explanation:
From the question,
The total time travelled by the projectile = Time of flight (T)
T = 2usinθ/g............ Equation 1
Where T = Time of Flight of the projectile, u = Initial velocity, θ = Angle of projection to the horizontal, g = acceleration due to gravity
Given: u = 40 m/s, θ = 45°
Constant: g = 9.8 m/s²
Substitute these values into equation 1
T = 2(40)sin(45°)/9.8
T = 80sin(45°)/9.8
T = 80×0.7071/9.8
T = 5.77 s
Question :What's oxidation?
Answer:
The process or result of oxidizing or being oxidized.(Rust)
Explanation:
Pluto
URGENT!!! ANSWER ASAP!!!!
A student with the flu was given medication that tasted bitter. Other than taste, which other test would confirm which type of compound was in the medication? Chose the two statements that apply.
A. It feels slippery
B. It reacts with metal
C. It turns blue litmus red
D. It turns red litmus blue
HINT!!! it is not B and D.... one of them could be right. but the other is wrong. pls help meeeee!!!!
PLS HELP
Answer:
C
Explanation:
i hope i helped you and have a nice day...
What is the average speed of a race car if it travelled a total of 500 miles in 3.5 hours
Answer:
speed = 142.8571 miles per hour OR 142.8571 mi/h
Explanation:
speed= [tex]\frac{distance}{time}[/tex]
distance = 500, time = 3.5hours or 210 minutes
speed= [tex]\frac{500}{210}[/tex] = 142.8571
hope this helps!!!!
I NEED HELP ASAP!! What is the difference between the experimental group and a control group?
I believe the control group is what doesn't change in the experiment, and the experimental group is what is being tested / receives the treatment :)
which gas would diffuse rapidly at the same temperature and pressure UF6 or CL2
Answer:
UF6
Explanation:
Which of the following is true of all stars? A) they produce energy and radiation B) they have about the same temperature c) they are generally the same size and color D) they produce energy for the same length of time
Answer:
A)
Explanation:
All stars produce some type of energy and radiation. But stars vary in temperature, size, color, and the length of energy they produce.