4,374 Answered Questions for the topic Science

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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05/04/21

So no one has helped me with my chemistry homework at all and I really need it so please someone respond and help me as soon as possible

1.) 3 Cu + 8HNO3 g 3 Cu(NO3)2   + 2 NO + 4 H2OIn the above equation how many moles of NO can be made when 58 moles of HNO3 are consumed? 2.) 2 NH3 + 3 CuO g 3 Cu + N2 + 3 H2OIn the above equation... more
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05/04/21

What effect would ingesting isotonic saline have on plasma ADH levels? Explain the physiological mechanisms involved

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05/04/21

calculate the boiling point of 500 gram aqueous solution that contains 20% ethylene glycol (C2H6O2, a non volatille liquid) if the solvent is water
helppp, how to get its boiling point
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05/03/21

Hello I have been needed help for days with my chemistry homework. Would someone kindly help me 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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05/03/21

I am in desperate need of help with my chemistry homework as soon as possible please because I have been ignored by many tutors for hours
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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05/03/21

Hi so um I need help with my homework and I have needed help for many hours please someone respond and help me as soon as possible

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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05/03/21

I need so much help with my chemistry homework because I have been stuck for days please 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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05/03/21

Hello so no tutor has helped me and I am in desperate need of help with my chemistry homework as soon as possible please

1.) 3 Cu + 8HNO3 g 3 Cu(NO3)2   + 2 NO + 4 H2OIn the above equation how many moles of NO can be made when 58 moles of HNO3 are consumed? 2.) 2 NH3 + 3 CuO g 3 Cu + N2 + 3 H2OIn the above equation... more
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05/03/21

Hola please understand that I have needed help with my homework for weeks please someone actually respond and help me

1.) For the reaction C + 2H2 → CH4, how many grams of hydrogen are required to produce 17 moles of methane, CH4 ?Round your answer to the nearest tenth. If you answer is a whole number like 4,... more
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05/03/21

Hi so no tutors have helped me at all I need so much help. I have needed help for many hours with my chemistry homework please help me as soon as possible please

S   + 6 HNO3 → H2SO4 + 6 NO2 + 2 H2OIn the above equation, how many grams of water can be made when 4.4 moles of HNO3 are consumed?Round your answer to the nearest tenth. If you answer is a whole... more
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Science Biology Genetics

05/03/21

I'm not sure how to answer this question.
A geneticist notes that crossing a round radish with a long radish produces oval radishes. When oval radishes were crossed with oval radishes, the F2 generation had these phenotypes: 100 long, 200... more
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Science Biology Genetics

05/03/21

In some chickens, the gene for feather colour is controlled by codominance. The allele for black is and the allele for white is F W. The heterozygous phenotype is known as erminette.
What is the genotype for black chickens?What is the genotype for white chickens?What is the genotype for erminette chickens?If two erminette chickens are crossed, what is the probability that they... more
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Science Chemistry

05/03/21

The boiling point of an aqueous solution with NaCl is 101.02 ∘c. Calculate the molality concentration of the solution
pls help me answering this im quite confused
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