06/13/21

Division with variables
(x^4 -2x^3 +x -4) divided by x^2 -3
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06/03/21

Need and explanation under this statement

Red blood cells in normal saline (Isotonic solution) can survive while blast and destroy in water.
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06/02/21

3 Cu + 8HNO3 --> 3 Cu(NO3)2 + 2 NO + 4 H2O
In the above equation, how many grams of water can be made when 10 grams of HNO3 are consumed?Round your answer to the nearest tenth. If your answer is a whole number like 4, report the answer as... more
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05/31/21

How many grams of ammonia can be produced from 1.33 grams of nitrogen trichloride?
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05/31/21

sodium oxide is dissolved in water and tested with litmus solution

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05/31/21

According to the Bronsted-Lowry theory, a base is a(n)____ A. proton donor B. proton acceptor C. electron donor D. electron acceptor
According to the Bronsted-Lowry theory, a base is a(n)____A. proton donorB. proton acceptorC. electron donorD. electron acceptor
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05/31/21

The pH of a solution for which [OH–] = 1.0 x10–6 is

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05/31/21

ΔHf for the following reaction: 2NaCl (aq) + H2SO4 (aq) ----> 2HCl (aq)+ Na2SO4
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05/31/21

When discussing the multiplication of viruses, virologists prefer to call the process replication, rather than reproduction.
When discussing the multiplication of viruses, virologists prefer to call the process replication, rather than reproduction. Why do you think this is so? Would you agree with virologists that... more
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10/01/20

Write the net ionic equation for the reaction that occurs when excess nitric acid(aq) and copper(II) carbonate are combined
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08/31/20

General Chemistry Electron Flow

A) Predict the products of the following acid base reactions.B) Draw the electron flow that leads to the products.
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06/19/20

b) Solve for y: 2x + 3y =12
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06/16/20

help me please and thank you
Christine deposited $4000 into an account with 2.1% interest, compounded monthly. Assuming that no withdrawals are made, how much will she have in the account after 6 years?Do not round any... more
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06/14/20

Substitution of one amino acid for a different one in a given protein always significantly alters the confirmation of that protein

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06/04/20

N2H4 Lewis Structure

Why can’t the 2 N have a double bond in the Lewis Structure for N2H4?
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05/17/20

Calculate enthalpy change
Use values for the standard enthalpies of formation to calculate the enthalpy change for the reaction below:2NH3(g)+3O2(g)+ CH4(g) → 2HCN(g) +6H2O(g)Give the quantity and unit (kJ) and don't forget... more
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05/17/20

chemistry question
Ammonia has a specific heat capacity of 2.06 J/(g·K). How much energy is released when the temperature of a 6.00 gram sample of ammonia is reduced from 300 K to 288 K?
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10/30/19

Does ADP allosterically activate or inhibit pyruvate kinase in Glycolysis? Or does it play a role in the allosteric regulation? If so, how?

I cannot find anywhere in my textbooks or scientific literature if whether or not ADP plays a role in allosterically activating or inhibiting pyruvate kinase in the glycolytic pathway. I know that... more
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10/25/19

What is the probable diagnosis if BUN is high and serum creatinine is normal?
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10/10/19

The epidural space is filled with cerebrospinal fluid (CSF).

The epidural space is filled with cerebrospinal fluid (CSF).
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10/04/19

A girl delivering newspapers travels 3 blocks west, 9 blocks north, then 6 blocks east. What is the magnitude of her resultant displacement? Answer in units of blocks.
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09/29/19

I really need help with this physics problem
So the problem is "A projectile is shot from the edge of a cliff 125m above ground level with an initial speed of 65.0m/s at an angle of 37.0 degrees with the horizontal. (a)Determine the time... more
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09/15/19

Why is norovirus such a problem on cruise ships and not in the general population?
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08/12/19

Will superbugs cause mass human mortality in the near future?
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07/27/19

What is driving disease outbreaks: failure to vaccinate or vaccine failure?
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