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Hesingne Zironang
Questions and answers by
Hesingne Zironang
Questions (63)
What are the green house gasses
1 answer
11 views
Name the industrial process that produces sulphuric acid from sulphur
1 answer
10 views
If the temperature is increased, what happens to the amount of products and reactants in the reaction of N2 +3H2=2NH3
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Explain why halogen are very reactive
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Chlorine gas is added to drinking water supplies to kill bacteria.what is the balance chemical reaction with state symbols for
1 answer
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Chlorine gas is added to drinking water supplies to kill bacteria.when chlorine react with water it produce a mixture of
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Metals are easily disolved by acid.However only one metal is disolved by aqua regia,a mixture of hydrochloric acid (3 parts)and
1 answer
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More sulphuric acid is produced by contact process every year then any other chemical.in the contact process,three raw meterials
1 answer
24 views
Rock phosphate is not used as fertilizer due to its low solubility in water.the from of phosphate that is more soluble in water
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The chemical reaction between Rock phosphate and sulphuric acid produces calcium dihydrogen phosphate and calcium sulphate.what
1 answer
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Name the metalloid in period 3 of the periodic table that is used in the manufacture of semi conductor
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Nitrogen gas is a chemically unreactive, but in a thunder Storm, lightning cause a small amount of nitrogen and oxygen to
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9 views
Write the chemical equation for the reaction between boron and fluorine
1 answer
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In the reaction between boron and fluorine, boron act as a metal or non metal, explain
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Soft drinks are often sold in aluminum cans instead of steel cans.state two reasons why aluminum is preferred to steel for soft
1 answer
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Provide the chemical formula for aluminum phosphate
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Give a balance chemical equation for the formation of ammonium nitrate from nitric acid and ammonia with state included
1 answer
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What is the area of the Minor segment cut off a circle of radius 10cm by a chord of length 14cm
1 answer
9 views
The circumference of a circle is 198cm.calculate the length of the arc which subtends an angle of 2π÷3 radians at the center
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A sector of a circle has an area of 32πcm^2and contains a central angle of 210 degrees.calculate the radius of a circle
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11 views
A sector of a circle has an area of 32πcm^2 and contains a central angle of 210 degrees.calculate the length of the cord that
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Find the area of the sector of a circle of radius 10cm if the length of the arc bounding the sector is 30cm?
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A field contains a of length 200 m and width of 150 cm Wich has a wheel of radius 100 m.how many revolutions Will a wheel of
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The field contains a length of 200 m and width of 150 m which has a wheel of radius 100cm.How many revolutions Will a wheel of
1 answer
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The field contains a length of 200m and width of 150 m.calculate the area of a field
1 answer
7 views
What is the exact area of the major segment of a circle of diameter 14 cm in which the Minor segment subtends a central angle of
1 answer
15 views
What is the exact area of the major segment of a circle of diameter 14 cm in which the Minor segment subtends an angle of 5π÷6
3 answers
17 views
What is the exact area of major segment of a circle of diameter 14 cm in which the Minor segment subtends an angle of 5π÷6
1 answer
11 views
What is the exact area of the major segment of a circle of diameter 14 cm in which the Minor segment subtends a central angle of
1 answer
10 views
When the function f(x)=2x^n+ax^2-6 is divided by (x-1), the reminder is -7 and when divided by (x+3), the reminder is
1 answer
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What is the exact area of the major segment of a circle of radius 7cm in which the Minor segment subtends a central angle of
1 answer
9 views
What is the exact area of a circle of diameter 14 cm in which the Minor segment subtends a central angle of 5π÷6 radians
1 answer
9 views
What is the effect called when a current is induced in the coil when the magnet is moved in and out of it
1 answer
9 views
What is deflect
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Suppose a wire of length 10m and mass 10 grams is suspended in air in a region with magnetic field of 0.5T at right angle to the
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Suppose a wire of length 10m and Mass 50g is suspended in air in a region with magnetic field of 0.5 T at right angle to the
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What is the area of the Minor segment cut off a circle of radius 10cm by a cord of length 14 cm ?
1 answer
10 views
What is the area of minor segment cut off a circle of radius 10 cm by a cord of 14 cm
1 answer
9 views
What is the area of the Minor segment cut off a circle of radius 10 cm by a chord of length 14 cm?
1 answer
12 views
What is the exact area of the major segment of a circle of diameter 14 cm in which the Minor segment subtends a central angle of
1 answer
9 views
What is the minor segment out of the circle of radius 10 cm by the chord of length 14 cm?
1 answer
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What is the area of the Minor segment cut off a circle of radius 10 cm by a chord of length 14 cm ?
1 answer
11 views
A sector of a circle has an area of 32πcm^2 and contains a central angle of 210 degrees.calculate the radius of the circle and
1 answer
10 views
A sector of a circle has an area of 32πcm^2 and contains a central angle of 210°.calculate the radius of the circle
1 answer
10 views
How to calculate velocity time graph
1 answer
8 views
Distance time graph
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Calculating electromagnetic induction
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Wenn diagram
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Identify three characteristics that could be used in describing mud snai population
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Describe any factors that may act to limit the population of snail
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Name an important abiotic factor that the snails must be tolerant to
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Explain any two adaptations that the snails may have to living in this environment
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Emigrationon
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Saddlebacks are territorial birds . discuss how territories can act to regulate population size
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Carrying capacity of the popula
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Given that A is acute and 2sin^2A-1÷3=cos^2A, find angle A
1 answer
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Two walkers set off at the same time from a crossroad and walk along flat straight roads incline to each other at 70°.If they
1 answer
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The angle of elevation to the top of a television towe is 45°from each of the two points on the ground level with its base.the
1 answer
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A and B are two balloons at the same height and 1000m apart.O is ground observation position, angle AOx=45°15' and angle
1 answer
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Two ships ,p and X sail from A at the same time,ship P sails 21 nautical miles due East in 30 minutes and ship X sails 30
3 answers
16 views
A piece of length 1 meter is cut into two parts and each piece is bent to form a square.the Total area of the two squares forms
1 answer
12 views
A piece of length 1 meter is cut into two parts and each piece is bent to form a square.the Total area of the two squares forms
1 answer
9 views
Two walkers set off at the same time from a crossroad and walk along flat straight roads inclined to each other at 70°.If they
1 answer
8 views
