Oxygen is participating in non-polar covalent bond(s)
Oxygen forms 2 covalent bond.
This is because oxygen atoms have 6 valence electrons. This means that it has 2 lone pairs and 2 unpaired electrons that are shared in order to achieve octet configuration.
In this chemistry, the 2 lone pairs on the oxygen are not shared with any other atoms. Instead; they are assigned to the oxygen atom. The formal charge on the oxygen atom is zero. Oxygen's atomic number is 8 and is equal to the sum of the number of its valence and inner shell electrons.
What is non-polar covalent bonding?Nonpolar covalent bonding is a kind of covalent bond in which the bonding electrons are shared equally between the two atoms.
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An inhibitor is added to an enzyme-catalyzed reaction at a concentration of 26.7 μM. The Vmax remains constant at 50.0 μM/s, but the KM increases by 150%. Calculate the Ki for this inhibitor.
Using the Michaelis-Menten equation competitive inhibition, the Inhibition constant, Ki of the inhibitor is 53.4 μM.
What is the Ki for the inhibitor?The Ki of an inhibitor is known as the inhibition constant.
The inhibition is a competitive inhibition as the Vmax is unchanged but Km changes.
Using the Michaelis-Menten equation for inhibition:
Kma = Km/(1 + [I]/Ki)Making Ki subject of the formula:
Ki = [I]/{(Kma/Km) - 1}where:
Kma is the apparent Km due to inhibitor Km is the Km of the enzyme-catalyzed reaction[I] is the concentration of the inhibitorSolving for Ki:
where
[I] = 26.7 μM
Km = 1.0
Kma = (150% × 1 ) + 1 = 2.5
Ki = 26.7 μM/{(2.5/1) - 1)
Ki = 53.4 μM
Therefore, the Inhibition constant, Ki of the inhibitor is 53.4 μM.
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Fill in the blank to complete each statement
The land that supplies water to a river system is called a
Pollution from a single, identifiable source is called
Pollution that is difficult to link to a particular origin is called
source pollution
source pollution.
Answer:
1- Watershed
2- Point
3- Nonpoint
Explanation:
Just did it
Answer:
1. watershed
2. point
3. nonpoint
Explanation:
What is the concentration of the following:
2.0mol of zinc sulphate in 10 dm^3 of solution
Answer:
Concentration is measured in moles per cubic decimetre: mol dm–3. To find the concentration of a solution, divide the number of moles by the volume in dm3. If the volume is in cm3, divide the volume by 1000 first to convert it into dm3.
Explanation:
What happens to the pitch of a sound if the frequency is high?
Water (2470 g ) is heated until it just begins to boil. If the water absorbs 5.47x105 J of heat in the process,
what was the initial temperature of the water?
Express your answer with the appropriate units.
Answer:
47.01 °C
Explanation:
Q = mcΔt
Mass of water = 2470g
c or specific heat capacity of water = 4.18 J °C g
Q = 5.47 x 10⁵ J, which is expanded 547,000 J
No idea what Δt is, but we do know the water began to boil, and we know that water's boiling point is 100°C, so the final temperature had to be 100°C.
547,000 J = (2470) x (4.18) x (Δt)
Rearrange equation for Δt
(547,000) / (2470 x 4.18) = Δt
Δt = 52.98°C
But we're not done. We're trying to find the INITIAL TEMPERATURE of the water, not the TEMPERATURE CHANGE. We already have the final temperature, which is 100°C, and now we have how much the initial temperature rose by to get to 100°C.
All that we have to do now is 100 - 52.98 = 47.02°C
The initial temperature of the water is 47.02°C
How many atoms are in 1mg of NaCl
The number of atoms in 1 mg of NaCl = 1 × 10^19 atoms
Calculation of quantity of atomsAtomic mass of Na = 23
Atomic mass of Cl = 35.5
Therefore the molar mass of NaCl = 23 + 35.5 = 58.5g/mol
But 1 mg = 0.001g and 1 mol = 6.022 × 10^ 23
Therefore, If = 58.5g = 6.022 × 10^ 23 atoms
0.001g =X atoms
X atoms = 6.022 × 10^23 × 0.001/58.5
= 0.1 × 10^23 × 10^-³
= 1 × 10^19 atoms
Therefore, the number of atoms in 1 mg of NaCl =1 × 10^19 atoms.
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June 1
June 8
June 11
5. What phase of the moon most likely will appear 28 days after phase C?
A Waning Gibbous
June 15
B
Waning Crescent
с
Waxing Crescent
D
Waxing Gibbous
Answer:
D
Explanation:
it's D because it goes waxing crescent to waxing gibbous
1. Compare masses: a) 0,4mol CO₂ and 0,6mol H₂O ; b) 0,135mol H₂SO₄ and 0,5mol HCI.
2. Where is the highest number of molecules? a) 0,1mol H₂O or 0,3mol CO₂ ; b) 0,25mol HCI, 3,4g H₂S or 5ml acetic acid CH₃COOH. (ρ=1,049g/ml).
Answer:
you can now deduct which one is greater or smaller and by how much.
Explanation:
no of moles= mass/molar mass
1ai) 0.4 = m/ ( 12 + (16*2)
m= 0.4* 44
m= 17.6g
ii) 0.6= m/( 2*1 + 16)
m= 0.6 *18
m= 10.8g
b) 0.135 = m/ ( 2*1 +32 + (16*4)
m= 0.135* 98
m= 13.23g
ii) 0.5= m/ (1+35.5)
m= 0.5*36.5
m= 18.25g
2. Avogadro's Number = 6.02×10²³
1 mol of any element= 6.02×10²³ particles
a) 0.1 mol of H20= (6.02×10²³) * 0.1
= 6.02×10²² molecules
ii) 0.3 mol of CO2= (6.02×10²³) * 0.3
= 1.806 × 10²³ molecules
Ans: 0.3 mol of CO2
bi) 0.25 mol of HCl= (6.02×10²³) * 0.25
= 1.505 × 10²³ molecules
bii) - find the no of moles first:
no of moles= mass/molar mass
n= 3.4g/ 34g →mr of H2S in g=2+32= 34g
n= 0.l mol
- use the Avogadro Number.
0.1 mol of H20= (6.02×10²³) * 0.1
= 6.02×10²² molecules.
biii) here you're given the density, use it to find the mass of acetic acid.
ρ = 1049 g/ml
ρ = m/v, where v=5 ml
1049 = m/ 5
m= ρ*v
m= 1049*5
m= 5245 g
• convert this into moles.
mr of CH3COOH= 12 + 3+ 12+ 16+ 16+ 1
= 60
mr in g = 60g
n= m/mr
n= 5245/ 60
n= 87. 41666...
n= 87.4 moles
•using Avogadro's Number:
87.4 moles of acetic acid=(6.02×10²³)*87.4
= 2.25148* 10²⁵
= 2.25 * 10²⁵ molecules
thus, the ans for this is 5 ml of acetic acid.
Describe the Principle of Continuity of State
If any liquid is flowing in a pipe of cross-section area, then rate of flow of liquid across any cross-section remains constant.
Principle of Continuity of StateAccording to the equation of continuity states that if any liquid is flowing in streamline flow in a pipe of non-uniform cross-section area, then rate of flow of liquid across any cross-section remains constant. In the Principle of Continuity of State, Av = constant.
Where A refers to cross-sectional area and v is the velocity in which the fluid flows. It means
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A student wants to test how plants grow in different
colors of light. Thinking about this experiment, what
are some of examples of each of the following? List at
least two in each.
DATA
VARIABLES
CONTROLS
Answer:
What is the question? I don't see it.
3. Calculate the mass of
(6) 0.5 mole of magnesium atoms.
(a) 3 moles of chlorine molecules.
Hope you could understand.
If you have any query, feel free to ask.
What is the empirical formula for CH2OHCH2OH?
HELP ME OUT PLS!!!!
What is the net force, to the nearest newton, that accelerates the ball?
A) 100 N
B) .000025 N
C) 40,000 N
D) 1000 N
Answer:
100n
Explanation:
f= 0.05*2000=100 N
Given 0.38 grams of N2, how many grams of NaN3 are needed
How to polymers work?
Answer:
A polymer is any of a class of natural or synthetic substances composed of very large molecules, called macromolecules, which are multiples of simpler chemical units. Polymers make up many of the materials in living organisms and are the basis of many minerals.
Explanation:
Explanation:
The first man-made polymers were actually modified versions of these natural polymers. Celluloid, the stuff from which silent-movie film was made, was a plastic created from chemically modified cellulose. The first completely synthetic polymer (that is, made by people through chemical synthesis), invented in the early years of the twentieth century, was Bakelite: a plastic made by reacting phenol and formaldehyde under pressure at high temperatures.
# be careful #
Calculate the value of K at 700 K for the
reaction
H2(g) + I2(g) → 2 HI(g)
if Kc = 54 at the same temperature.
Answer:
It going to be 54
Explanation:
I got it right but I would say it's because the temperature stays the same. So the K value stays the same.
A Snickers bar contains 27.0 g of sugars (carbohydrates), 4.0 g of protein and 12.0 g of fat. How many food calories (Cal) are contained in the bar
Answer:
There are 232 calories in the bar
Explanation:
Carbohydrates and protein are both 4 calories per gram, while fat is 9 calories per gram.
[tex]27*4=108\\4*4=16\\12*9=108\\108+108+16=232[/tex]
Someone can help me please??
what is the 3rd element on the periodic table?
Answer:
Lithium
Explanation:
The 3rd (third) element on the periodic table is Lithium. Lithium is a soft, silvery, light alkali metal denoted with the symbol Li.