What is a stand and mat used to hold a beaker or flask over a Bunsen burner?

What is a stand and mat used to hold a beaker or flask over a Bunsen burner?
by

1 Answer

Answer :

Need answer
by

Related questions

Who Discovered Bunsen Burner ?

Description : Who Discovered Bunsen Burner ?

Last Answer : Robert Bunsen discovers Bunsen Burner.

The hottest part of the flame of a Bunsen burner is the

Description : The hottest part of the flame of a Bunsen burner is the

Last Answer : The hottest part of the flame of a Bunsen burner is the A. Blue Zone B. Zone of complete combustion ... D. All parts of the flame are equally hot.

What is a Bunsen burner from the North Sea?

Description : What is a Bunsen burner from the North Sea?

Last Answer : The bunsen burner doesn't come from the North Sea. In the UnitedKingdom, the mains gas supply is natural gas which largely comesfrom the wells in the North Sea, so we call it North Sea gas. ... 1970's we used coal gaswhich needed a different admixture of air so all our bunsens had tobe converted.

Why is it safer to close the air holes of the Bunsen burner with unattended?

Description : Why is it safer to close the air holes of the Bunsen burner with unattended?

Last Answer : What is the answer ?

In which direction should you move the inoculating loop in the Bunsen burner flame?

Description : In which direction should you move the inoculating loop in the Bunsen burner flame?

Last Answer : Need answer

Why should you turn a Bunsen burner to a yellow flame if you need to leave it?

Description : Why should you turn a Bunsen burner to a yellow flame if you need to leave it?

Last Answer : The yellow flame is more visible - making it easier for othersto see. It's also a colder flame than the blue conical one.

What is a Bunsen burner from the North Sea?

Description : What is a Bunsen burner from the North Sea?

Last Answer : The bunsen burner doesn't come from the North Sea. In the UnitedKingdom, the mains gas supply is natural gas which largely comesfrom the wells in the North Sea, so we call it North Sea gas. ... 1970's we used coal gaswhich needed a different admixture of air so all our bunsens had tobe converted.

Why do cations emit colors when heated in a Bunsen burner flame?

Description : Why do cations emit colors when heated in a Bunsen burner flame?

Last Answer : Atoms were excited by heating, electrons move to a higher energy level and as these electrons fall back to a lower energy level, the specific radiation for the element is emitted.

Bunsen burner is an example of a/an __________ burner. (A) Inside mixing/premix type (B) Outside mixing/diffusion flame/nozzle mix type (C) Rotary cup (D) Submerged combustion

Description : Bunsen burner is an example of a/an __________ burner. (A) Inside mixing/premix type (B) Outside mixing/diffusion flame/nozzle mix type (C) Rotary cup (D) Submerged combustion

Last Answer : (A) Inside mixing/premix type

To ensure that the heat from a burner is spread evenly across the bottom of a beaker, one should use a _______.?

Description : To ensure that the heat from a burner is spread evenly across the bottom of a beaker, one should use a _______.?

Last Answer : i don’t know

When changing fuses, you should always _____________. A. wear rubber boots B. use a fuse puller C. stand on a rubber mat D. wear safety glasses

Description : When changing fuses, you should always _____________. A. wear rubber boots B. use a fuse puller C. stand on a rubber mat D. wear safety glasses

Last Answer : Answer: B

When replacing fuses, always make sure _______________. A. to stand on a rubber mat and use rubber gloves B. to use insulated pliers or screwdriver C. the fuse clips are straight, tight, and in good contact D. to increase the fuse rating 10% to guard against 'nuisance blowing'

Description : When replacing fuses, always make sure _______________. A. to stand on a rubber mat and use rubber gloves B. to use insulated pliers or screwdriver C. the fuse clips are straight, tight, and in good contact D. to increase the fuse rating 10% to guard against 'nuisance blowing'

Last Answer : Answer: C

A colorless salt gives violet colour to Bunsen flame and also turns moisture litmus paper blue. It is :

Description : A colorless salt gives violet colour to Bunsen flame and also turns moisture litmus paper blue. It is :

Last Answer : A colorless salt gives violet colour to Bunsen flame and also turns moisture litmus paper blue. It is : A. `Na_(2) ... C. `NaNO_(3)` D. `K_(2)CO_(3)`

How many of following metals impart a characteristic colour to the Bunsen flame ? `(i) Na " " (ii) Li " " (iii) K " " (iv) Ba` `(v) Sr " " (vi) Mg " "

Description : How many of following metals impart a characteristic colour to the Bunsen flame ? `(i) Na " " (ii) Li " " (iii) K " " (iv) Ba` `(v) Sr " " (vi) Mg " "

Last Answer : How many of following metals impart a characteristic colour to the Bunsen flame ? `(i) Na " " (ii) Li " " (iii) K ... ix) `Be " " (x )Ca " " (x i)Cu`

In the following diagram bunsen flame the (X ) represent.

Description : In the following diagram bunsen flame the (X ) represent.

Last Answer : In the following diagram bunsen flame the (X ) represent. A. Oxidising zone B. Reducing zone C. Lower temperature zone D. Hottest portion of flame

What is an element that was discovered by Bunsen?

Description : What is an element that was discovered by Bunsen?

Last Answer : R. Bunsen and G. Kirchhoff discovered rubidium and cesium.

Colour imparted to the Bunsen flame by strontium salt is - (1) bluish green (2) apple-green (3) brick red (4) crimson red

Description : Colour imparted to the Bunsen flame by strontium salt is - (1) bluish green (2) apple-green (3) brick red (4) crimson red

Last Answer : (4) crimson red Explanation: A flame test is performed by introducing a sample into the blue flame of a bunsen burner and noting any change in the colour of the flame. The tests can be used ... metallic elements in salts. With strontium salt, the colour of Bunsen flame ranges from crimson to red.

Colour imparted to the Bunsen flame by strontium salt is (1) bluish green (2) apple-green (3) brick red (4) crimson red

Description : Colour imparted to the Bunsen flame by strontium salt is (1) bluish green (2) apple-green (3) brick red (4) crimson red

Last Answer : crimson red

Decoupaging a Flask - Sealer type?

Description : Decoupaging a Flask - Sealer type?

Last Answer : I made a birdbath out of a gorgeous piece of african red mahogany. I figured I could seal it with marine grade polyurethane, but it didn't work, the water still crept under and eventually ... completely and permanently. But someone else might have a magical solution. Sounds like a neat idea though.

How does one measure the capacity of a round bottom boiling flask?

Description : How does one measure the capacity of a round bottom boiling flask?

Last Answer : Fill it and pour it into a liquid measuring jug to measure the capacity.

What's a good drink for your hip flask?

Description : What's a good drink for your hip flask?

Last Answer : Whiskey?

I'm first found in caves, now prolific online; I'm a depiction, a drawing, a symbol, or sign. I'll convey whichever mood you could wish; or for that matter, a fist, flask, or fish. What am I? -Riddles

Description : I'm first found in caves, now prolific online; I'm a depiction, a drawing, a symbol, or sign. I'll convey whichever mood you could wish; or for that matter, a fist, flask, or fish. What am I? -Riddles

Last Answer : An emoji.

What's the Difference Between Django and Flask?

Description : What's the Difference Between Django and Flask?

Last Answer : Flask offers a diversified working style while Django offers a monolithic working style. Flask is a WSGI framework while Django is a Full-stack Web Framework. Django is considered to be more popular ... to build complex applications. Flask is a good start if you are getting into web development.

S.L. Miller an American scientist created electric discharge experiment in a closed flask containing `CH_(4),H_(2),NH_(3)` and water vapour at what te

Description : S.L. Miller an American scientist created electric discharge experiment in a closed flask containing `CH_(4),H_(2),NH_(3)` and water vapour at what te

Last Answer : S.L. Miller an American scientist created electric discharge experiment in a closed flask containing `CH_(4),H_(2),NH_ ... . `200^(@)C` D. `1000^(@)C`

Swan neck flask experiment proved :

Description : Swan neck flask experiment proved :

Last Answer : Swan neck flask experiment proved : A. biogenesis B. abiogenesis C. special creation D. both (1) and (2)

A well stoppered thermo flask containing some ice cubes is an example of

Description : A well stoppered thermo flask containing some ice cubes is an example of

Last Answer : A well stoppered thermo flask containing some ice cubes is an example of A. Closed system B. ... system C. Isolated system D. Non-thermodynamic system

3 gram of activated charcoal was added to 50 mL of acetic acid solution (0.06N) in a flask. After an hour it was filtered and the strength of the fitr

Description : 3 gram of activated charcoal was added to 50 mL of acetic acid solution (0.06N) in a flask. After an hour it was filtered and the strength of the fitr

Last Answer : 3 gram of activated charcoal was added to 50 mL of acetic acid solution (0.06N) in a flask. After an hour it was ... B. `36 mg` C. `42 mg` D. `54 mg`

A flask-shaped fleshy recetacle enclosing both the types of flowers is present in

Description : A flask-shaped fleshy recetacle enclosing both the types of flowers is present in

Last Answer : A flask-shaped fleshy recetacle enclosing both the types of flowers is present in A. Cyathium B. Hypanthodium C. Coenanthium D. Spadix

A 500 mL glass flask is filled at 298 K and 1 atm, pressure with three diatomic gases, X, Y and Z . The initial volume ratio of the gases before mixin

Description : A 500 mL glass flask is filled at 298 K and 1 atm, pressure with three diatomic gases, X, Y and Z . The initial volume ratio of the gases before mixin

Last Answer : A 500 mL glass flask is filled at 298 K and 1 atm, pressure with three diatomic gases, X, Y and Z . The ... . `H_2 , F_2 , O_2` D. `O_2,H_2 , F_2`

What is a conical flask used for in science?

Description : What is a conical flask used for in science?

Last Answer : Need answer

What happens if the solution in the conical flask gets washed with distilled water during the experiment?

Description : What happens if the solution in the conical flask gets washed with distilled water during the experiment?

Last Answer : That will depend on what the solution is, as well as many otherpossible conditions what you failed to specify in yourquestion.

What type of chemical reaction is a flaming flask?

Description : What type of chemical reaction is a flaming flask?

Last Answer : This is an example of hydrogen burning.

What type of chemical reaction is a flaming flask?

Description : What type of chemical reaction is a flaming flask?

Last Answer : This is an example of hydrogen burning.

A fern differ from a moss in prossessing: (a) Swimming/flagellated anitherozoids (b) Flask-shaped archegonia (c) Independent Sporophyte (d) Independent gametophyte

Description : A fern differ from a moss in prossessing: (a) Swimming/flagellated anitherozoids (b) Flask-shaped archegonia (c) Independent Sporophyte (d) Independent gametophyte

Last Answer : Ans. ((c))

Drinks remain hot or cold for a long time in a thermos flask because of the (a) presence of air, which is a bad conductor of heat, in between the double walls (b) silver coating on the inside of the double walls (c) vacuum between the double walls (d) combined effects of (b) and (c)

Description : Drinks remain hot or cold for a long time in a thermos flask because of the (a) presence of air, which is a bad conductor of heat, in between the double walls (b) silver coating on the inside of the double walls (c) vacuum between the double walls (d) combined effects of (b) and (c)

Last Answer : Ans:(d)

Why does a liquid remain hot or cold for a long time inside a thermo flask?

Description : Why does a liquid remain hot or cold for a long time inside a thermo flask?

Last Answer : Ans: Because of the presence of air, which is poor conductor of heat, in between the double glass walls of a thermos flask.

To limit current in LED, resistor should be connected in A. parallel B. series C. evacuated flask D. ionized tube

Description : To limit current in LED, resistor should be connected in A. parallel B. series C. evacuated flask D. ionized tube

Last Answer : series

From his experiments, S.L. Miller produced amino acids by mixing the following in a closed flask. (a) CH4, H2, NH3 and water vapor at 800°C (b) CH3, H2, NH4 and water vapor at 800°C (c) CH4, H2, NH3 and water vapor at 600°C (d) CH3, H2, NH3 and water vapor at 600°C

Description : From his experiments, S.L. Miller produced amino acids by mixing the following in a closed flask. (a) CH4, H2, NH3 and water vapor at 800°C (b) CH3, H2, NH4 and water vapor at 800°C (c) CH4, H2, NH3 and water vapor at 600°C (d) CH3, H2, NH3 and water vapor at 600°C

Last Answer : a) CH4, H2, NH3 and water vapor at 800°C

Tea kept in a thermos flask is vigorously shaken. If the tea is considered as a system, then its temperature will (A) Increase (B) Decrease (C) Remain unchanged (D) First fall and then rise

Description : Tea kept in a thermos flask is vigorously shaken. If the tea is considered as a system, then its temperature will (A) Increase (B) Decrease (C) Remain unchanged (D) First fall and then rise

Last Answer : (A) Increase

Write a short note on Measuring Flask

Description : Write a short note on Measuring Flask

Last Answer : Measuring Flask : Flask is laboratory vessels (container). The flask is made of plastic or glass. They are of different sizes and shapes. In school laboratory, 50ml, 100ml, 250ml, 500ml & 1000ml ... of different sizes and shapes. In laboratory 10ml to 25 ml pipette of glass or plastic are used.

How can I make a Beaker Muppet costume for next Halloween?

Description : How can I make a Beaker Muppet costume for next Halloween?

Last Answer : Follow these instructions to make a beaker muppet costume

Take a 250 mL beaker/glass tumbler. Fill half of it with water. Now carefully cut a small piece of sodium metal. Dry it using filter paper and wrap it in a small piece of cotton. Put the sodium piece wrapped in cotton into the beaker. Observe carefully. -Science

Description : Take a 250 mL beaker/glass tumbler. Fill half of it with water. Now carefully cut a small piece of sodium metal. Dry it using filter paper and wrap it in a small piece of cotton. Put the sodium piece wrapped in cotton into the beaker. Observe carefully. -Science

Last Answer : On touching the beaker, it was felt hot. The solution turns the red litmus paper to blue which shows it is basic in nature. Blue litmus paper do not show any colour change with the solution.

Describe an activity to observe what happens when quick lime is added to water taken in a beaker. State two important observations and name the type of reaction taking place. -Chemistry

Description : Describe an activity to observe what happens when quick lime is added to water taken in a beaker. State two important observations and name the type of reaction taking place. -Chemistry

Last Answer : Answer. Aim: To observe what happens when quicklime is added to water taken in a beaker. Materials Required:- Quicklime (calcium oxide), water, beaker.Procedure: 1. Take 5 g of calcium oxide in a ... example for each of decomposion reaction carried out with help of (i) Electricity (ii) Heat (iii)

15 mL of water and 10 mL of sulphuric acid are to be mixed in a beaker (i) State the method that should be followed with reason. (ii)What is this process called? -Chemistry

Description : 15 mL of water and 10 mL of sulphuric acid are to be mixed in a beaker (i) State the method that should be followed with reason. (ii)What is this process called? -Chemistry

Last Answer : (i) The acid is to be added slowly in water to prevent the mixture to be splashed. The reaction is highly exothermic, therefore, constant cooling should be done. (ii)The process is called dilution.

While determining the refractive index of a liquid experimentally, the microscope was focussed at the bottom of a beaker, when its reading was 3.965 c

Description : While determining the refractive index of a liquid experimentally, the microscope was focussed at the bottom of a beaker, when its reading was 3.965 c

Last Answer : While determining the refractive index of a liquid experimentally, the microscope was focussed at the ... . Find the refractive index of the liquid.

Calculate the index of refraction of a liquid from the following into glass: (a) Reading for the bottom of an empty beaker: 11.324 cm (b) Reading for

Description : Calculate the index of refraction of a liquid from the following into glass: (a) Reading for the bottom of an empty beaker: 11.324 cm (b) Reading for

Last Answer : Calculate the index of refraction of a liquid from the following into glass: (a) Reading for the ... level of the liquid in the beaker: 12.895cm

In Fig. a plane mirror lies at a height h above the bottom of a beaker containingwater (refractive index `mu`) upto a height f. Find the position of t

Description : In Fig. a plane mirror lies at a height h above the bottom of a beaker containingwater (refractive index `mu`) upto a height f. Find the position of t

Last Answer : In Fig. a plane mirror lies at a height h above the bottom of a beaker containingwater (refractive index ... f. Find the position of the image of the

When heating a beaker of H20 on a hot plate there are 3 types of energy conversions?

Description : When heating a beaker of H20 on a hot plate there are 3 types of energy conversions?

Last Answer : Need answer

What is the hazard for beaker?

Description : What is the hazard for beaker?

Last Answer : Need answer