4,347 Answered Questions for the topic Science

05/06/21

i need help! chemistry needed

What is the correct term to describe table salt which has a chemical formula of NaCl (Sodium Chloride)?An AtomA MoleculeAn ElementA Compound a compound right ?
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05/06/21

Clinical nursing question
A nurse summons you too assess a 300-pound, one-day post-operative cholecystectomy patient. He has no fever, has no productive cough, and has a negative chest x ray. He is, however, reluctant to... more
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05/06/21

chemistry I would appreciate it so much
__ P4O6 ---> ____ P4+_____ P2O41) How many moles of diphosphorus tetroxide are produced from 3.65 moles of tetraphosphorus hexoxide?Anewer ____ mol2) How many moles of tetraphosphorus hexoxide... more
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05/06/21

chemistry I would appreciate it so much

__ P4O6 ---> ____ P4+_____ P2O41) How many moles of diphosphorus tetroxide are produced from 3.65 moles of tetraphosphorus hexoxide?Anewer ____ mol2) How many moles of tetraphosphorus hexoxide... more
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Science Chemistry

05/06/21

Based in Magnesium being the limited reactant, calculate the theoretical yield and Percent yield. Then determine the average percent yield in the two trials.

Data Trial 1 Trial 2 Mass of empty crucible with lid 26.694g 26.693g Mass of Mg metal, crucible, and lid 26.953g 27.002g Mass of MgO, crucible, and lid  27.117g 27.198g Magnesium is the... more
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Science Math

05/06/21

A car travels 300 km south for 4 hours.What is its velocity?
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Science Chemistry

05/06/21

The freezing point of an aqueous solution with NaCl is -0.20 C. Calculate the molality concentration of the solution.
please, help me how to get its freezing point
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05/06/21

Practice Question #6 – Gram to Gram Mole Ratio Stoichiometry
1.     Copper I iodide, CuI, is not stable enough to last long in storage, so it is generally made just prior to use. In can be prepared from copper sulphate and hydriodic acid by the... more
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05/06/21

Practice Question #6 – Gram to Gram Mole Ratio Stoichiometry
1.     Copper I iodide, CuI, is not stable enough to last long in storage, so it is generally made just prior to use. In can be prepared from copper sulphate and hydriodic acid by the... more
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Expert Answers •2

05/06/21

Practice Question #6 – Gram to Gram Mole Ratio Stoichiometry
1.     Copper I iodide, CuI, is not stable enough to last long in storage, so it is generally made just prior to use. In can be prepared from copper sulphate and hydriodic acid by the... more
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05/06/21

Please I need this :) I would really love someone to help me

Copper I iodide , Cul , is not stable enough to last long in storage , so it is generally made just prior to use . In can be prepared from copper sulphate and hydriodic acid by the following... more
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05/06/21

Practice worksheet

Copper I iodide , Cul , is not stable enough to last long in storage , so it is generally made just prior to use . In can be prepared from copper sulphate and hydriodic acid by the following... more
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05/06/21

Practice #6 Gram to gram Ratio Stoichiometry
Copper I iodide , Cul , is not stable enough to last long in storage , so it is generally made just prior to use . In can be prepared from copper sulphate and hydriodic acid by the following... more
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Science Geology

05/06/21

Year 9 geology plate tectonics question

One study found that the Nazca plate is moving faster than the mantle beneath it.Evaluate how this piece of evidence would help you decide why the plate is moving faster than the mantle. Use either... more
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Science Geology

05/05/21

Year 9 Geology question
At some divergent boundaries, volcanic eruptions along mid-ocean ridges are continually creating new oceanic crust. This causes the seafloor to slowly spread away from the ridges. But the Earth's... more
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Science Math Calculus

05/05/21

Finding the interval of convergence of the integral
Let f(x)= ∑n=1∞ (-1)^n (x/4)^n. Find the series and interval of convergence for the integral from 0 to x of f(t)dt
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05/05/21

GRAM to gram mole ratio stoichemetry pratice #6 worksheet
GRAM TO GRAM MOLE RATIO STOICHMETRYCopper I iodide , Cul , is not stable enough to last long in storage , so it is generally made just prior to use . In can be prepared from copper sulphate and... more
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Science Chemistry

05/05/21

In a Ag/Cu Galvanic cell, Ag(s) and Cu(s) electrodes were placed in a solution with 0.50 M Ag^+ and 0.50 M Cu^2+. What can be concluded about the cell potential?
In a Ag/Cu Galvanic cell, Ag(s) and Cu(s) electrodes were placed in a solution with 0.50 M Ag+ and 0.50 M Cu2+. What can be concluded about the cell potential?The cell potential is the same as the... more
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Science Math Chemistry

05/05/21

A voltaic cell contains one half-cell with zinc electrode in a Zn^2+(aq) solution and a copper electrode in a Cu2+(aq) solution.
A voltaic cell contains one half-cell with zinc electrode in a Zn2+(aq) solution and a copper electrode in a Cu2+(aq) solution. At standard conditions, E° = 1.10 V. Which condition below would... more
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Science Math Chemistry

05/05/21

An electrochemical cell is created with the following setup... What is the E of this cell?
An electrochemical cell is created with the following setup: K|K+(1.88M)||Cr3+(0.054M)|Cr What is the E of this cell?
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05/05/21

Determining the interval of convergence of Power series
Lets say you have a function f(x)= (1/4)+(2/4^2)+(3/4^3)+...+(((n+1)*x^n)/4^(n+1) for all xa) What would the interval of convergence of this power series beb) Find the limit as x approaches 0 of... more
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05/04/21

My goodness I have been needing help with my chemistry homework for many days and I was told that wyzant tutors can help. Please help me correctly as soon as possible please

Sodium chlorate decomposes into sodium chloride and oxygen gas as seen in the equation below. 2NaClO3­ --> 2NaCl +3O2 How many moles of NaCl were produced by 7 moles of NaClO3­? Round your... more
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05/04/21

I have been ignored and helped incorrectly by tutors please would someone kindly help me with my chemistry homework

1.) 2 NH3 + 3 CuO g 3 Cu + N2 + 3 H2OIn the above equation how many moles of N2 can be made when 13 moles of CuO are consumed? 2.) Sodium chlorate decomposes into sodium chloride and oxygen gas as... more
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05/04/21

Please understand that no one has helped me and I need help with my chemistry homework please help me please respond
1.) S   + 6 HNO3 --> H2SO4 + 6 NO2 + 2 H2OIn the above equation how many moles of H2SO4 can be made when 56 moles of HNO3 are consumed?2.) S   + 6 HNO3 --> H2SO4 + 6 NO2 + 2 H2OIn the above... more
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05/04/21

Many tutors have helped me with this question in chemistry homework incorrectly please someone respond and help me as soon as possible please

1.) 3 Cu + 8HNO3 --> 3 Cu(NO3)2   + 2 NO + 4 H2OIn the above equation how many moles of water can be made when 25 moles of HNO3 are consumed?2.) Sodium chlorate decomposes into sodium chloride... more
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