What are the spectator ions in the given balanced chemical equation CaCI2(aq) plus k2CO3(aq) CaCO3 (s) plus 2 KCI (aq)?

What are the spectator ions in the given balanced chemical equation CaCI2(aq) plus k2CO3(aq) CaCO3 (s) plus 2 KCI (aq)?
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Main constituent of dolomite is (A) CaCO3 (B) MgCO3 (C) K2CO3 (D) Na2CO3

Description : Main constituent of dolomite is (A) CaCO3 (B) MgCO3 (C) K2CO3 (D) Na2CO3

Last Answer : (B) MgCO3

What are the spectator ions in the reaction 2KOH plus H2SO4 and gt2H2O plus K2SO4?

Description : What are the spectator ions in the reaction 2KOH plus H2SO4 and gt2H2O plus K2SO4?

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A net ionic equation does NOT show: w) electronic charges x) solid products (precipitates) y) spectator ions z) reacting species

Description : A net ionic equation does NOT show: w) electronic charges x) solid products (precipitates) y) spectator ions z) reacting species

Last Answer : ANSWER: Y -- SPECTATOR IONS

Finish balancing the following equation:__Al(s)+3Zn(NO 3 )2(aq) ➝ Al(NO 3)3(aq)+__Zn(s) What coefficient does Al(s) have in the balanced equation?

Description : Finish balancing the following equation:__Al(s)+3Zn(NO 3 )2(aq) ➝ Al(NO 3)3(aq)+__Zn(s) What coefficient does Al(s) have in the balanced equation?

Last Answer : 2

Sodium reacts with water to form sodium hydroxide and hydrogen gas. The balanced equation which represents the above reaction is (a) Na(s) + 2H20(l) → 2NaOH(aq) + 2H2(g) (b) 2Na(s) + 2H2O(l) → 2NaOH(aq) +H2(g) (c) 2Na(s) + 2H20(l) → NaOH(aq) + 2H2(g) (d) 2Na(s) + H20(l) - 2NaOH(aq) + 2H2(g)

Description : Sodium reacts with water to form sodium hydroxide and hydrogen gas. The balanced equation which represents the above reaction is (a) Na(s) + 2H20(l) → 2NaOH(aq) + 2H2(g) (b) 2Na(s) + 2H2O(l) → 2NaOH(aq) +H2(g) (c) 2Na(s) + 2H20(l) → NaOH(aq) + 2H2(g) (d) 2Na(s) + H20(l) - 2NaOH(aq) + 2H2(g)

Last Answer : Answer: (b)

How many grams of LiOH is formed from 25.0 g of CaOH given the following equation... Ca(OH)2 plus Li2CO3 ----- and gt CaCO3 plus 2Li(OH) What is the answer and how did you get it?

Description : How many grams of LiOH is formed from 25.0 g of CaOH given the following equation... Ca(OH)2 plus Li2CO3 ----- and gt CaCO3 plus 2Li(OH) What is the answer and how did you get it?

Last Answer : The chemical reaction is:Li2CO3 + Ca(OH)2 = 2 LiOH + CaCO3Molar maass of LiOH is 23,95 g; molar mass of calcium hydroxide is 74,093 g.74,093 g Ca(OH)2----------------2.23,95 g LiOH25 g Ca(OH)2----------------------xx = (25 x 2 x 23,95)/74,093 = 16,2 g LiOH

Oxalic acid, `H_(2)C_(2)O_(4)`, reacts with paramagnet ion according to the balanced equation `5H_(2)C_(2)O_(4)(aq)+2MnO_(4)^(-)(aq)+6H^(+)(aq)hArr2Mn

Description : Oxalic acid, `H_(2)C_(2)O_(4)`, reacts with paramagnet ion according to the balanced equation `5H_(2)C_(2)O_(4)(aq)+2MnO_(4)^(-)(aq)+6H^(+)(aq)hArr2Mn

Last Answer : Oxalic acid, `H_(2)C_(2)O_(4)`, reacts with paramagnet ion according to the balanced equation `5H_(2)C_(2)O_(4)(aq ... A. 13.6 B. 18.5 C. 33.8 D. 84.4

Oxalic acid, `H_(2)C_(2)O_(4)`, reacts with paramagnet ion according to the balanced equation `5H_(2)C_(2)O_(4)(aq)+2MnO_(4)^(-)hArr2Mn^(2+)(aq)+10CO_

Description : Oxalic acid, `H_(2)C_(2)O_(4)`, reacts with paramagnet ion according to the balanced equation `5H_(2)C_(2)O_(4)(aq)+2MnO_(4)^(-)hArr2Mn^(2+)(aq)+10CO_

Last Answer : Oxalic acid, `H_(2)C_(2)O_(4)`, reacts with paramagnet ion according to the balanced equation `5H_(2)C_(2)O_(4)(aq ... A. 13.6 B. 18.5 C. 33.8 D. 84.4

What are spectator ions?

Description : What are spectator ions?

Last Answer : During a neutralization reaction anion of acid and cation of base don’t take part in the reaction and remain in the solution .These ions are called spectater ions.

What information do you get from the following chemical equation: Zn(s) + 2HCl (dil) → ZnCl2 (aq) + H2(g)

Description : What information do you get from the following chemical equation: Zn(s) + 2HCl (dil) → ZnCl2 (aq) + H2(g)

Last Answer : This gives zinc chloride and hydrogen. The word equation is: Zinc + Hydrochloric acid → Zinc chloride + Hydrogen Formulae for the products are ZnCl2 and H2

If you rewrite the following word equation as a balanced chemical equation what will the coefficient and symbol for fluorine be nitrogen trifluoride nitrogen plus fluorine?

Description : If you rewrite the following word equation as a balanced chemical equation what will the coefficient and symbol for fluorine be nitrogen trifluoride nitrogen plus fluorine?

Last Answer : 2NF3 --> N2 + 3F2

How do you balance KNO3 plus H2CO3 K2CO3 plus HNO3?

Description : How do you balance KNO3 plus H2CO3 K2CO3 plus HNO3?

Last Answer : 2KNO3 + H2CO3 ==> K2CO3 + 2HNO3 would be the balanced equation but since all of the species are ionizable and soluble, this reaction won't actually take place.

Assertion :- In the reaction `Zn(s)+cu^(+2)(aq)rarrZn^(+2)(aq)+Cu(s)` `Cu^(+2)` ions act as oxidising agent and Zn atoms act as a reducing agent. Reas

Description : Assertion :- In the reaction `Zn(s)+cu^(+2)(aq)rarrZn^(+2)(aq)+Cu(s)` `Cu^(+2)` ions act as oxidising agent and Zn atoms act as a reducing agent. Reas

Last Answer : Assertion :- In the reaction `Zn(s)+cu^(+2)(aq)rarrZn^(+2)(aq)+Cu(s)` `Cu^(+2)` ions ... the Reason is False. D. If both Assertion & Reason are False.

Which of the following observations is / are not correct about the given equation: Pb(NO 3 ) 2 (aq) + 2 KI (aq)  PbI 2 (s) + 2KNO 3 (aq) (a) PbI 2 is yellow precipitate insoluble in water (b) It is precipitation reaction (c) It is single displacement reaction (d) It is very fast reaction

Description : Which of the following observations is / are not correct about the given equation: Pb(NO 3 ) 2 (aq) + 2 KI (aq)  PbI 2 (s) + 2KNO 3 (aq) (a) PbI 2 is yellow precipitate insoluble in water (b) It is precipitation reaction (c) It is single displacement reaction (d) It is very fast reaction

Last Answer : (c) It is single displacement reaction

2NH3 g plus Mg s -- 3H2 g plus Mg3N2 s is a balanced equation?

Description : 2NH3 g plus Mg s -- 3H2 g plus Mg3N2 s is a balanced equation?

Last Answer : False (APEX)

Which of the following ions dissolve in excess of aq. `NH_(3)`

Description : Which of the following ions dissolve in excess of aq. `NH_(3)`

Last Answer : Which of the following ions dissolve in excess of aq. `NH_(3)` A. `Al^(3+)` B. `Cu^(2+)` C. `Ag^(+)` D. `Zn^(2+)`

Which of the following ions dissolve in excess of aq. `NH_(3)`

Description : Which of the following ions dissolve in excess of aq. `NH_(3)`

Last Answer : Which of the following ions dissolve in excess of aq. `NH_(3)` A. `Al^(3+)` B. `Cu^(2+)` C. `Ag^(+)` D. `Zn^(2+)`

Murate of potash is (a) K2SO4 (b) KCI (c) KNO3 (d) K2HPO4

Description : Murate of potash is (a) K2SO4 (b) KCI (c) KNO3 (d) K2HPO4

Last Answer : (b) KCI

Are single-displacement reactions A.AgNO3 (aq) plus NaCl (aq) AgCl (s) plus NaNO3 (aq) B.2Fe(s) plus 6HCI (g) 2FeCl3 (s) plus 3H2 (g) C.2Al (s) plus 3CuCl2 (aq) 2AlCl3 (aq) plus 3Cu?

Description : Are single-displacement reactions A.AgNO3 (aq) plus NaCl (aq) AgCl (s) plus NaNO3 (aq) B.2Fe(s) plus 6HCI (g) 2FeCl3 (s) plus 3H2 (g) C.2Al (s) plus 3CuCl2 (aq) 2AlCl3 (aq) plus 3Cu?

Last Answer : Need answer

What Mass Of Calcium Carbonate Is Needed For Complete Reaction With The HCl In 2HCl(aq) plus CaCO 3 (s) CaCl 2 (aq) plus H 2 O(l) plus CO 2 (g)?

Description : What Mass Of Calcium Carbonate Is Needed For Complete Reaction With The HCl In 2HCl(aq) plus CaCO 3 (s) CaCl 2 (aq) plus H 2 O(l) plus CO 2 (g)?

Last Answer : Need answer

Two half-reactions of an electrochemical cell are given below : MnO–4 (aq) + 8H+ (aq) + 5e– → Mn2+ (aq) + 4H2O (I), E° = 1.51 V Sn2+ (aq) → Sn4+ (aq) + 2e–, E° = + 0.15 V. Construct the redox equation from the standard potential of the cell and predict if the reaction is reactant favoured or product favoured. -Chemistry

Description : Two half-reactions of an electrochemical cell are given below : MnO-4 (aq) + 8H+ (aq) + 5e- → Mn2+ (aq) + 4H2O (I), E° = 1.51 V Sn2+ (aq) → Sn4+ (aq) + 2e- ... the redox equation from the standard potential of the cell and predict if the reaction is reactant favoured or product favoured. -Chemistry

Last Answer : The reactions can be represented at anode and at cathode in the following ways : At anode (oxidation) : Sn2+ → = Sn4+ (aq) + 2e- ] 5 E° = + 0.15 V At cathode (reduction) : MnO-4(aq) + 8H+ ... = E°cathode - E°anode = 1.51 - 0.15 = + 1.36 V ∴ Positive value of E°cell favours formation of product.

Two half-reactions of an electrochemical cell are given below : MnO–4 (aq) + 8H+ (aq) + 5e– → Mn2+ (aq) + 4H2O (I), E° = 1.51 V Sn2+ (aq) → Sn4+ (aq) + 2e–, E° = + 0.15 V. Construct the redox reaction equation from the two half-reactions and calculate the cell potential from the standard potentials and predict if the reaction is reactant or product favoured. -Chemistry

Description : Two half-reactions of an electrochemical cell are given below : MnO-4 (aq) + 8H+ (aq) + 5e- → Mn2+ (aq) + 4H2O (I), E° = 1.51 V Sn2+ (aq) → Sn4+ (aq) + ... -reactions and calculate the cell potential from the standard potentials and predict if the reaction is reactant or product favoured. -Chemistry

Last Answer : The reactions can be represented at anode and at cathode in the following ways : At anode (oxidation) : Sn2+ → Sn4+ (aq) + 2e- ] 5 E° = + 0.15 V Af cathode (reduction) : MnO-4(aq) + 8H+ ( ... = E°cathode - E°anode = 1.51 - 0.15 = + 1.36 V ∴ Positive value of E°cell favours formation of product.

`P_(4)(s) + 3OH^(-) (aq) + 3H_(2)O (I) rarr PH_(3) (g) + 3H_(2)PO_(2)^(-) (aq)` In the above equation, the species getting oxidized and reduced respec

Description : `P_(4)(s) + 3OH^(-) (aq) + 3H_(2)O (I) rarr PH_(3) (g) + 3H_(2)PO_(2)^(-) (aq)` In the above equation, the species getting oxidized and reduced respec

Last Answer : `P_(4)(s) + 3OH^(-) (aq) + 3H_(2)O (I) rarr PH_(3) (g) + 3H_(2)PO_(2)^(-) (aq)` In the above equation ... ` C. `P_(4) and H_(2)O` D. `P_(4) and P_(4)`

`P_(4)(s) + 3OH^(-) (aq) + 3H_(2)O (I) rarr PH_(3) (g) + 3H_(2)PO_(2)^(-) (aq)` In the above equation, the species getting oxidized and reduced respec

Description : `P_(4)(s) + 3OH^(-) (aq) + 3H_(2)O (I) rarr PH_(3) (g) + 3H_(2)PO_(2)^(-) (aq)` In the above equation, the species getting oxidized and reduced respec

Last Answer : `P_(4)(s) + 3OH^(-) (aq) + 3H_(2)O (I) rarr PH_(3) (g) + 3H_(2)PO_(2)^(-) (aq)` In the above equation ... ` C. `P_(4) and H_(2)O` D. `P_(4) and P_(4)`

Is the following equation balanced Mg plus cl - and gt2Mgcl?

Description : Is the following equation balanced Mg plus cl - and gt2Mgcl?

Last Answer : NO

What is the balanced equation of magnesium plus chlorine equals Magnesium chloride?

Description : What is the balanced equation of magnesium plus chlorine equals Magnesium chloride?

Last Answer : The reaction is:Mg + Cl2 = MgCl2

Which of the following is the chemical formula for calcite? w) CaCO3 x) CaMgSO4 y) FeCO3 z) FeS2

Description : Which of the following is the chemical formula for calcite? w) CaCO3 x) CaMgSO4 y) FeCO3 z) FeS2

Last Answer : ANSWER: W -- CaCO3

Write a balanced chemical equation with state symbols for the following reactions : -Chemistry-10

Description : Write a balanced chemical equation with state symbols for the following reactions : -Chemistry-10

Last Answer : (i) BaCl2 (aq) + Na2SO4 (aq) → BaSO4(s) + 2NaCl (aq) (ii) NaOH (aq) + HCl(aq) → NaCl(aq) + H2O(l)

Write the balanced equation for the following chemical reactions. (i) Hydrogen + Chlorine → Hydrogen chloride (ii) Barium chloride + Aluminium sulphate → Barium sulphate + Aluminium chloride (iii) Sodium + Water → Sodium hydroxide + Hydrogen -Chemistry-10

Description : Write the balanced equation for the following chemical reactions. (i) Hydrogen + Chlorine → Hydrogen chloride (ii) Barium chloride + Aluminium sulphate → Barium sulphate + Aluminium chloride (iii) Sodium + Water → Sodium hydroxide + Hydrogen -Chemistry-10

Last Answer : (i) H2 + Cl2 → 2HCl (ii) 3 BaCl2 + Al2(SO4)3 → BaSO4 + 2 AlCl3 (iii) 2Na + 2H2O → 2NaOH + H2↑

What is meant by skeltal type chemical equation? What does it represent? Using the equation for electrolytic decomposition of water, differentiate between a skeltal chemical equation and a balanced chemical equation. -Chemistry

Description : What is meant by skeltal type chemical equation? What does it represent? Using the equation for electrolytic decomposition of water, differentiate between a skeltal chemical equation and a balanced chemical equation. -Chemistry

Last Answer : Answer. The equations in which gaseous are written in atomic form instead of molecular form and equation is not balanced, are called skeltal type equation. They represent gaseous elements formed in atomic state and equation is not balanced

Which products will be obtained when lead nitrate is heated simply. Write balanced chemical equation for the reaction? State the type of chemical reaction that occur in the change. -Chemistry

Description : Which products will be obtained when lead nitrate is heated simply. Write balanced chemical equation for the reaction? State the type of chemical reaction that occur in the change. -Chemistry

Last Answer : Answer. Lead monoxide, nitrogen dioxide and oxygen gas will be liberated. It is thermal decomposition reaction.

What is observed when a solution of potassium iodide solution is added to a solution of lead nitrate? Name the type of reaction. Write a balanced chemical equation to represent the above chemical reaction. -Chemistry

Description : What is observed when a solution of potassium iodide solution is added to a solution of lead nitrate? Name the type of reaction. Write a balanced chemical equation to represent the above chemical reaction. -Chemistry

Last Answer : Answer.Yellow precipitate of lead iodide is formed. It is precipitation reaction. Pb( NO3)2 (aq) + 2KI (aq) —-> Pbl2 (s) + 2KNO3 (aq) It is also called double displacement reaction.

(a) Define a balanced chemical equation. Why should an equation be balanced? (b) Write the balanced chemical equation for the following reaction: (i) Phosphorus burns in presence of chlorine to form phosphorus penta chloride. (ii) Burning of natural gas. (iii) The process of respiration. -Chemistry

Description : (a) Define a balanced chemical equation. Why should an equation be balanced? (b) Write the balanced chemical equation for the following reaction: (i) Phosphorus burns in presence of chlorine to form phosphorus penta chloride. (ii) Burning of natural gas. (iii) The process of respiration. -Chemistry

Last Answer : Answer. (a) Balanced chemical equation has an equal number of atoms of different elements in the reactants and products. According to law of conservation of mass, matter can neither be created nor be destroyed in a chemical ... C6H12O6 (s) + 6O2 (g) + 6H2O ---> 6CO2 (aq) + 12H2O (l) + energy

i) Write a balanced chemical equation for process of photosynthesis. (ii)When do desert plants take up carbon dioxide and perform photosynthesis? -Chemistry

Description : i) Write a balanced chemical equation for process of photosynthesis. (ii)When do desert plants take up carbon dioxide and perform photosynthesis? -Chemistry

Last Answer : Answer. (ii) In desert plants the stomata are open at night. They take CO2 at night and is stored in the form of acid and is used during day time for photosynthesis.

(i) Write the balanced chemical equation for the process of photosynthesis, (ii) When do the desert plants take up carbon dioxide and perform photosynthesis ? -Biology

Description : (i) Write the balanced chemical equation for the process of photosynthesis, (ii) When do the desert plants take up carbon dioxide and perform photosynthesis ? -Biology

Last Answer : (i) Photosynthesis can be represented using a chemical equation. The overall balanced equation is (ii) Desert plants open up their stomata during night and take in CO2. Stomata remains close during the ... cells until the sun comes out and they can carry on with photosynthesis during the day time.

10.(a) An ore on treatment with dilute hydrochloric acid produces brisk effervesces. What type of ore is this? What steps will be required to obtain metal from the enriched ore. , (b) Copper coin is kept immersed in silver nitrate solution for some time. What change will take place in coin and colour of the solution ? Write balanced chemical equation of the reaction involved. -Chemistry

Description : 10.(a) An ore on treatment with dilute hydrochloric acid produces brisk effervesces. What type of ore is this? What steps will be required to obtain metal from the enriched ore. , (b) ... in coin and colour of the solution ? Write balanced chemical equation of the reaction involved. -Chemistry

Last Answer : (a) Carbonate ore: (i) Calcination: Carbonate ore is heated in limited supply of air and oxide is obtained, e.g. (b) Copper, being more reactive than silver will displace silver from silver nitrate ... and there will be deposition of silver on copper coin. The colour of solution will turn to blue.

What is the balanced chemical equation of HClO4 and NaOH?

Description : What is the balanced chemical equation of HClO4 and NaOH?

Last Answer : The chemical reaction is:HClO4 + NaOH = NaClO4 + H2O

What is the balanced chemical equation for Solid calcium and chlorine gas react to form solid calcium chloride?

Description : What is the balanced chemical equation for Solid calcium and chlorine gas react to form solid calcium chloride?

Last Answer : Need answer

What is the balanced chemical equation for lead II acetate and sodium sulphate?

Description : What is the balanced chemical equation for lead II acetate and sodium sulphate?

Last Answer : The chemical equation is:Pb(CH3COO)2 + Na2SO4 = 2 CH3COONa + PbSO4(s)Lead sulfate is a precipitate.

What is a balanced chemical equation.

Description : What is a balanced chemical equation.

Last Answer : Ans. A chemical equation which has an equal number of atoms of each element in the reactants and the products is called balanced chemical equation.

Differentiate between: (a) Reactants and products (b) A balanced and an unbalanced chemical equation

Description : Differentiate between: (a) Reactants and products (b) A balanced and an unbalanced chemical equation

Last Answer : (a) Reactants and products Reactants 1. The substances that react with one another are called reactants. 2. Reactants are written on the left hand side of equation. Products 1. The new substances formed are ... are not equal to the number of elements on product side. 2. Ex- H2 + Cl2 → 2HCl

A balanced chemical reaction equation conforms to the law of (A) Conservation of mass (B) Avogadro’s hypothesis (C) Gaseous volumes (D) None of these

Description : A balanced chemical reaction equation conforms to the law of (A) Conservation of mass (B) Avogadro’s hypothesis (C) Gaseous volumes (D) None of these

Last Answer : (A) Conservation of mass

A student dropped few pieces of marble in dilute hydrochloric acid contained in a test tube. The evolved gas was then passed through lime water. What change would be observed in lime water? Write balanced chemical equation for both the change observed?

Description : A student dropped few pieces of marble in dilute hydrochloric acid contained in a test tube. The evolved gas was then passed through lime water. What change would be observed in lime water? Write balanced chemical equation for both the change observed?

Last Answer : Answer. When dilute HCl is added to marble which is calcium carbonate, it forms calcium chloride, water and carbon dioxide. The chemical equation for the reaction is as follows: CaCO3 + 2HCl → CaCl2 + H2O ... reaction between lime water and carbon dioxide is as follows: Ca(OH)2 + CO2 → CaCO3 + H2O

Chemical equation is balanced according to the law of [AMU 1984] (A) Multiple proportion (B) Reciprocal proportion (C) Conservation of mass (D) Definite proportions

Description : Chemical equation is balanced according to the law of [AMU 1984] (A) Multiple proportion (B) Reciprocal proportion (C) Conservation of mass (D) Definite proportions

Last Answer : (C) Conservation of mass

K2CO3 Cannot be prepared by solvay process ?

Description : K2CO3 Cannot be prepared by solvay process ?

Last Answer : Ans. Because KHCO3 is highly soluble in water

H2S present in naphtha reformed gas is removed by absorbing with (A) Ethanolamine (B) K2CO3 (C) HCl (D) Vacuum gas oi

Description : H2S present in naphtha reformed gas is removed by absorbing with (A) Ethanolamine (B) K2CO3 (C) HCl (D) Vacuum gas oi

Last Answer : (A) Ethanolamine

Flushing liquor used for cooling coke oven gas constitutes of (A) Ammoniacal liquor (B) K2CO3 solution (C) Dilute H2SO4 (D) Dilute HCl

Description : Flushing liquor used for cooling coke oven gas constitutes of (A) Ammoniacal liquor (B) K2CO3 solution (C) Dilute H2SO4 (D) Dilute HCl

Last Answer : (A) Ammoniacal liquor

Vetrocoke solution is (A) A mixture of K2CO3 and As2O3 (B) K2SO4 (C) A mixture of Na2CO3 and As2O3 (D) Na2SO4

Description : Vetrocoke solution is (A) A mixture of K2CO3 and As2O3 (B) K2SO4 (C) A mixture of Na2CO3 and As2O3 (D) Na2SO4

Last Answer : (A) A mixture of K2CO3 and As2O3

For the reaction : `I^(-)+ClO_(3)^(-)+H_(2)SO_(4) to Cl^(-)+HSO_(4)^(-)+I_(2)` The correct statement(s) in the balanced equation is/are:

Description : For the reaction : `I^(-)+ClO_(3)^(-)+H_(2)SO_(4) to Cl^(-)+HSO_(4)^(-)+I_(2)` The correct statement(s) in the balanced equation is/are:

Last Answer : For the reaction : `I^(-)+ClO_(3)^(-)+H_(2)SO_(4) to Cl^(-)+HSO_(4)^(-)+I_(2)` The ... Sulphur is reduced. D. `H_(2)O` is one of the products.

If you swallowed a frag grenade, how much closer could a spectator stand without dying?

Description : If you swallowed a frag grenade, how much closer could a spectator stand without dying?

Last Answer : 1. Most people can't swallow a frag grenade, and if it's stuck in someone's mouth, the cheek flesh isn't going to slow down the fragments much, so it would tend to be about the usual ... THE CASUALTY PRODUCING RADIUS OF THIS GRENADE IS 15 METERS, FRAGMENTS CAN DISPERSE AS FAR AWAY AS 230 METERS.