clive

This page lists questions and answers that were posted by visitors named clive.

Questions

The following questions were asked by visitors named clive.

Find the HCF and LCM of: 1 + 4x + 4x^2 - 16x^4.. ,1 + 2x - 8x^3 - 16x^4.., 16x^4 + 4x^2 + 1

Show that: sin^2(45 + A) + sin^2(45 - A ) = 1

Red sclae residue ( COPPER II ) partly dissolves in dilute acid to form a pale blue solution. Name the pale blue solution and give chemical equation to support your answer

Prove : 1 + Sin2A/ Cos2A = CosA + SinA / CosA- SinA

Copper dissolves in dilute acid ( H2so4) to form a pale blue solution Which of the following equation is correct 1) Cu + H2sO4-----> CuSO4 + h2 2) Cu + 2H2so4--->Cuso4 + 2H20 + 2SO2

Methane burns in air to give carbon dioxide and water. Give a chemical equation . Show(State ) how the mixtures of these gases can be separated

What would be the pH of a solution that liberates carbon dioxide from sodium carbonate. Give chemical equation and reason

How can DRY calcium carbonate be prepared from sodium carbonate? Na2Co3 + CaCl2 --- NaCL + CaCo3. but how to get dry calcium carbonate

carbon dioxide is moderately soluble in cold water but is completely boiled out if the water is boiled.Solubility increases rapidly with pressure. How is the above phenomenon used in the production of aerated drinks?

A and B can do a piece of work in 12 days. They started to work together but A left after a few days. If B alone worked for 20 days, the whole work was finished in 24 days. How long would A take to complete the work??? question is really confusing :/

In the preparation of ammonia, why should the mixture of ammonium chloride and calcium hydroxide be a paste, not dry powder?

A and B can do a piece of work in 10 days, B and C in 15 days, A and C in 12 days. A,B and C work together to finish the work. If they are paid $1500, how should the money be divided?

A and B take 18 days to complete a work. A left the work after 10 days and B takes 12 days more to complete the work. In how many days can A complete the whole work?

Given that 3rd Quartile (Q3) = 60 . The classes are : 0-10,10-20,20-30,30-40,40-50,50-60,60-7... 70-80,80-90 Now, IN which class does Q3 lie?? 50-60 or 60-70?

A(2,1) , B(4,3) and C(3,5) are the vertices of a triangle ABC. If r1 represents the reflection in X axis and r2 represents the reflection in the line x=5, find the image of triangle ABC under combined transformation r2 o r1. Should we perform r2 first or...

How can we increase the rate of change of magnetic flux? ( i want to check my answer)? Can it be : a) using a stronger magnet b) increasing the rate of movement of the conductor? are these correct?? both of them

x^2 + xy - Ky^2=0 , the angle made by the line pairs of this equation is 45 degree. I got the value of k as 0 and -2, do we need to reject k=0 and conclude our answer as k=-2 ?

What is the first step in the scientific method?

Answers

The following answers were posted by visitors named clive.

Thank you sir.. You made my day :D

Is Cu + 2H2So4 = Cuso4 + 2so2 + 2h20

powders are carbon and cupric oxide red sclae - copper pale blue solution - CuSO4 rest do by yourself

Thak you sir for all these momentous information. Can you help me with one more question. I have posted it just now sir. I have an important exam tomorrow The question being ; Methane burns in air to give carbon dioxide and water. Give a chemical equation...

in limited air, what reaction does it undergo to form carbon MONOXIDE ?

Thank you so much. :D :D . I am very grateful towards you... :)

Thanks... can you help me with this question as well? A and B take 18 days to complete a work. A left the work after 10 days and B takes 12 days more to complete the work. In how many days can A complete the whole work?

so, it is wrong right? Is number b correct?

But I did it comparing with ax^2 + 2hxy + by^2=0 and got -2

People may get angry when they do not have they right

can you help me

hey bot is Theregodatboi right

thx the bestanwsers 100 2025

Consider the reaction represented by the space-fill models shown. Drag the correct label to each box. Blank 1 represents the substance(s) on the left. Blank 2 represents the arrow in the middle. Blank 3 represents the substance(s) on the right. (2 points)

Which of the following might a limited government be more likely to do than an unlimited government?

Which of the following could provide definitive evidence of a chemical reaction? Choose two correct answers.(1 point)