ice crystals forming on a window a chemical change?

ice crystals forming on a window a chemical change?
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The process of forming crystals from their solutions is called _______ . -Science

Description : The process of forming crystals from their solutions is called _______ . -Science

Last Answer : The process is crystallisation.

What is Ice crystals that fall to the earth in frozen clumps?

Description : What is Ice crystals that fall to the earth in frozen clumps?

Last Answer : Snow

Cirrus clouds are: w) rain clouds x) thick and fleecy y) made of ice crystals z) low cloud layers

Description : Cirrus clouds are: w) rain clouds x) thick and fleecy y) made of ice crystals z) low cloud layers

Last Answer : ANSWER: Y -- MADE OF ICE CRYSTALS

Crystals of ice are: w) isometric x) tetragonal y) hexagonal z) orthorombic

Description : Crystals of ice are: w) isometric x) tetragonal y) hexagonal z) orthorombic

Last Answer : ANSWER: Y -- HEXAGONAL

2g of ferrous sulphate crystals are heated in a dry boiling tube. (i) List any two observations. (ii) Name the type of chemical reaction taking place. (iii) ‘Write the chemical equation for the reaction. -Chemistry

Description : 2g of ferrous sulphate crystals are heated in a dry boiling tube. (i) List any two observations. (ii) Name the type of chemical reaction taking place. (iii) ‘Write the chemical equation for the reaction. -Chemistry

Last Answer : Answer. (i) •Green colour of Fe SO4 disappears and reddish brown solid is formed. • Smell of burning sulphur. (ii) Decomposition reaction

Promoter (A) Initiates a chemical reaction and is a catalyst by itself (B) Alters the position of equilibrium in a reversible reaction (C) Increases the number of active centres by increasing the unevenness of catalyst surface and by creating discontinuities in the crystals(D) All (A), (B) and (C)

Description : Promoter (A) Initiates a chemical reaction and is a catalyst by itself (B) Alters the position of equilibrium in a reversible reaction (C) Increases the number of active centres by increasing the unevenness of catalyst surface and by creating discontinuities in the crystals (D) All (A), (B) and (C)

Last Answer : (C) Increases the number of active centres by increasing the unevenness of catalyst surface and by creating discontinuities in the crystals

What is the colour of ferrous sulphate crystals? How does this colour change after heating? -Chemistry

Description : What is the colour of ferrous sulphate crystals? How does this colour change after heating? -Chemistry

Last Answer : Answer.The colour of ferrous sulphate is pale green. The colour changes to reddish brown on heating due to formation of iron (III) oxide. Give an example each for ... reactions. Write relevant balanced chemical equations also. Thermal decomposition reaction: Photochemical decomposition reaction:

Copper sulphate crystals when heated strongly, lose their water of crystallization to give anhydrous copper sulphate accompanied by a change in color from: (a). Blue to green (b). Blue to white (c). Blue to sky blue (d). Blue to grey

Description : Copper sulphate crystals when heated strongly, lose their water of crystallization to give anhydrous copper sulphate accompanied by a change in color from: (a). Blue to green (b). Blue to white (c). Blue to sky blue (d). Blue to grey

Last Answer : (b). Blue to white

Can you use pineapple or kiwi juice to de-ice a car window?

Description : Can you use pineapple or kiwi juice to de-ice a car window?

Last Answer : Pineapple juice is not a de-icer nor an anti-freeze. It has an ingredient (bromelain) that disrupts gelatin’s ability to set. If you pour juice on a window to de-ice it, you will end up with a slushy mess and the acid will probably ruin your paint job.

Is crushing ice in blender a chemical or physical change?

Description : Is crushing ice in blender a chemical or physical change?

Last Answer : It's a physical change ! Chemically it's still water (ice).

Is crushing ice in a blender a chemical change?

Description : Is crushing ice in a blender a chemical change?

Last Answer : It's a physical change ! Chemically it's still water (ice).

Is ice cream physical or chemical change?

Description : Is ice cream physical or chemical change?

Last Answer : Physical change

Is ice cream melting a chemical change or a physical change?

Description : Is ice cream melting a chemical change or a physical change?

Last Answer : Melting ice cream is a physical change because it has the ability to go back to it's frozen form and be ice cream again. The chemical identity of it isn't changed.

How a rural area can grow and change forming a suburb?

Description : How a rural area can grow and change forming a suburb?

Last Answer : Feel Free to Answer

Is a physical change A.Forming a mixture B.Burning wood C.Food turning into waste in the intestines D.Turning solid sodium and chlorine gas into salt?

Description : Is a physical change A.Forming a mixture B.Burning wood C.Food turning into waste in the intestines D.Turning solid sodium and chlorine gas into salt?

Last Answer : What is the answer ?

I had a vitrectomy four weeks ago and two days ago noticed more floaters and a water like bubble forming in the eye that was operated on. I have change my plans to return home in two days to see my Dr. The bubble has increased in size. advise please.?

Description : I had a vitrectomy four weeks ago and two days ago noticed more floaters and a water like bubble forming in the eye that was operated on. I have change my plans to return home in two days to see my Dr. The bubble has increased in size. advise please.?

Last Answer : You might be developing a cataract, which is the most common complication of vitrectomy procedure; other complications are infection and retinal detachment. Be sure to contact your doctor at once.

When paternal and maternal chromosomes change their materials with each other in cell division this event is called (a) bivalent-forming (b) dyad-forming (c) synapsis (d) crossing-over.

Description : When paternal and maternal chromosomes change their materials with each other in cell division this event is called (a) bivalent-forming (b) dyad-forming (c) synapsis (d) crossing-over.

Last Answer : (d) crossing-over.

Can one meditate using online pictures/videos of crystals?

Description : Can one meditate using online pictures/videos of crystals?

Last Answer : IMO. The practice would be self induced. Not reliant on the actual crystal. Focus, and self discipline should bring about whatever desired effects that could be obtained from the same exercise with the crystals….

Crystals in the bottom of my booze - what could they be?

Description : Crystals in the bottom of my booze - what could they be?

Last Answer : You are essentially growing Rock Candy…be careful as the longer this liquor evaporates the stronger the liquor gets.

Is there any intrinsic power in quartz crystals and, if so, what is it?

Description : Is there any intrinsic power in quartz crystals and, if so, what is it?

Last Answer : No. There is no “power” in quartz crystals other than their power to make gullible people spend lots of money on them!

Why are there crystals in my cat's urine?

Description : I just noticed crystals in my cat's urine. Should I be concerned? Why is this happening? What should I do to fix it?

Last Answer : Crystals in the cat's urine are a sign of a lower urinary tract disorder. They can be caused by not enough water intake and the cat's diet. Changing to a canned food diet can help but do so ... with little veggies. Depending on the severity of the problem, take your cat to the vet to be examined.

i have crystals growing on my nectarines, what do i do

Description : i have crystals growing on my nectarines, what do i do

Last Answer : Need Answer

What was the frost like crystals on my grass early this morning June 27th?

Description : What was the frost like crystals on my grass early this morning June 27th?

Last Answer : Need Answer

A blanket of crystals that covers all. Nothing can escape its fall. It will put you to sleep in a harsh way, and you will never again see the day It's on the earth always and forever, part of our lives leaving, never. Floats and falls like little butterflies. Catch them and they will surely die. What am I? -Riddles

Description : A blanket of crystals that covers all. Nothing can escape its fall. It will put you to sleep in a harsh way, and you will never again see the day It's on the earth always and forever, part ... never. Floats and falls like little butterflies. Catch them and they will surely die. What am I? -Riddles

Last Answer : Snow.

if a substance forms crystals when it solidifies, its _______ points are the same. -General Knowledge

Description : if a substance forms crystals when it solidifies, its _______ points are the same. -General Knowledge

Last Answer : If a substance forms crystals when it solidifies, its melting and freezing points are the same.

Describe how crystals of copper sulphate are prepared. -Science-7

Description : Describe how crystals of copper sulphate are prepared. -Science-7

Last Answer : Take a cupful of water in a beaker and add a few drops of dilute sulphuric acid. Heat the water. When it starts boiling, add copper sulphate powder slowly. Continue to add copper sulphate powder ... to cool without disturbing the solution. After some time, we can see the crystals of copper sulphate.

Why do metals conduct electricity but crystals of ionic compounds do not conduct electricity ?

Description : Why do metals conduct electricity but crystals of ionic compounds do not conduct electricity ?

Last Answer : Metals have free electrons. These electrons, created to gain the electromagnetic positivity and octal structure of the metal, flow from the negative side of the electric source to the positive edge ... electrons does not occur in it. Therefore crystals of ionic compounds do not conduct electricity.

what are piezoelectric crystals from ...

Description : ... in piezo lighters?

Last Answer : The piezoelectric effect can only occur with crystals that do not have a center of symmetry. The best known piezoelectric substance is monocrystalline quartz, crystal or barium thianate. For ... , a piezoelectric effect was observed with the Seignett salt (potassium sodium tartrate tetrahydrate).

How long does it take for crystals to work?

Description : How long does it take for crystals to work?

Last Answer : I don't have knowledge in this field but you can consult regarding field about this. if you came to know about the uses of crystal and other details you can post this in this forum.

Kidney crystals are solid clusters of

Description : Kidney crystals are solid clusters of

Last Answer : Kidney crystals are solid clusters of A. Calcium nitrate and uric acid B. Phosphate and uric ... uric acid D. Calcium metabisulphite and uric acid

Kidney crystals are solid clusters of

Description : Kidney crystals are solid clusters of

Last Answer : Kidney crystals are solid clusters of A. Calcium nitrate and uric acid B. Phosphate and uric ... uric acid D. Calcium metabisulphite and uric acid

What is smooth glassy rock that forms when lava cools so fast that there is no time for crystals to form?

Description : What is smooth glassy rock that forms when lava cools so fast that there is no time for crystals to form?

Last Answer : Obsidian

What property of liquid crystals makes them useful for displays?

Description : What property of liquid crystals makes them useful for displays?

Last Answer : Liquid crystals can rotate the angle of polarization of light bydifferent amounts depending on the strength of an electric fieldacross them. This allows them to be used in high speed opticalswitches controlling the amount of light visible in pixels of adisplay.

Is not a major component of magma A. partially melted mineral crystals B. water C. dissolved gases D. lava?

Description : Is not a major component of magma A. partially melted mineral crystals B. water C. dissolved gases D. lava?

Last Answer : Water is not a major component of melted rock. The heat hasturned any water into steam.

What would you do to form a heterogeneous mixture of sugar and salt crystals?

Description : What would you do to form a heterogeneous mixture of sugar and salt crystals?

Last Answer : The mixture of salt and sugar crystals is heterogeneous.

If a substance forms crystals when it solidifies its melting and freezing points are the same?

Description : If a substance forms crystals when it solidifies its melting and freezing points are the same?

Last Answer : Melting and freezing points are identical.

Are Growing crystals dead living or inorganic?

Description : Are Growing crystals dead living or inorganic?

Last Answer : They're inorganic. The crystals 'grow' by molecules of the samesubstance in the surrounding liquid sticking to the 'seed'crystal.

What is acopy of a fossil produced by filling a mold for settlements or crystals?

Description : What is acopy of a fossil produced by filling a mold for settlements or crystals?

Last Answer : Feel Free to Answer

What is the melting point of washing soda crystals?

Description : What is the melting point of washing soda crystals?

Last Answer : Feel Free to Answer

What does Liliana used 444 dark power crystals to raise 141414 zombie soldiers. She wants to know how many zombie soldiers (z)(z)left parenthesis z right parenthesis she can raise with 101010 dark pow?

Description : What does Liliana used 444 dark power crystals to raise 141414 zombie soldiers. She wants to know how many zombie soldiers (z)(z)left parenthesis z right parenthesis she can raise with 101010 dark pow?

Last Answer : What is the answer ?

What is mineral crystals of quartz biotite mica and amphibole are produced primarily by?

Description : What is mineral crystals of quartz biotite mica and amphibole are produced primarily by?

Last Answer : Cooling and soildification of magma.

Is urea crystals element?

Description : Is urea crystals element?

Last Answer : No, urea is a nitrogen compound.

Why ionic crystals don't conduct electricity in the solid state?

Description : Why ionic crystals don't conduct electricity in the solid state?

Last Answer : In the solid state ionic crystals are not dissociated in ions.

name three things that crystals grow from?

Description : name three things that crystals grow from?

Last Answer : salt seed sugar

How large crystals form in a metamorphic rock?

Description : How large crystals form in a metamorphic rock?

Last Answer : 10

Which one of the following statements is NOT correct? [IAS 2003] (a) Black cotton soil of north-west India was formed by the weathering of basaltic lava rocks (b) Sedimentary rocks are distinguished from other types of rocks by the presence of distinct layers (c) Granite has large crystals of quartz, feldspar and mica in it (d) A metamorphic rock is softer and less compact than its original type

Description : Which one of the following statements is NOT correct? [IAS 2003] (a) Black cotton soil of north-west India was formed by the weathering of basaltic lava rocks (b) Sedimentary rocks are distinguished ... feldspar and mica in it (d) A metamorphic rock is softer and less compact than its original type

Last Answer : Ans: (d)

Raphides are the crystals of: (a) Calcium oxalate (b) Calcium (c) Calcium phosphate (d) Calcium carbonate

Description : Raphides are the crystals of: (a) Calcium oxalate (b) Calcium (c) Calcium phosphate (d) Calcium carbonate

Last Answer : Ans. ((a))

Which of the following characteristics is not typical of ionically bonded crystals? (a) Has no sharp melting point (b) Cleave into definite cleavage planes (c) Conducts when melted (d) Shatters when crystal is distorted

Description : Which of the following characteristics is not typical of ionically bonded crystals? (a) Has no sharp melting point (b) Cleave into definite cleavage planes (c) Conducts when melted (d) Shatters when crystal is distorted

Last Answer : Ans:(a)

Deposition of uric acid crystals at the joint is the cause of - (1) Arthritis (2) Osteoporosis (3) Osteomalacia (4) Rickets

Description : Deposition of uric acid crystals at the joint is the cause of - (1) Arthritis (2) Osteoporosis (3) Osteomalacia (4) Rickets

Last Answer : (1) Arthritis Explanation: Gout is a medical condition usually characterized by recurrent attacks of acute inflammatory arthritis- a red, tender, hot, swollen joint. It is caused by elevated ... . The uric acid crystallizes, and the crystals deposit in joints, tendons, and surrounding tissues.