What is A chemical equation where the number of atoms of each element are the same on both sides coefficients are often needed to balance a chemical equation?

What is A chemical equation where the number of atoms of each element are the same on both sides coefficients are often needed to balance a chemical equation?
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It is important to balance the chemical equations to satisfy the law of conservation of mass. Which of the following statements of the law is incorrect? (a) The total mass of the elements present in the reactants is equal to the total mass of the elements present in the products. (b) The number of atoms of each element remains the same, before and after a chemical reaction. (c) The chemical composition of the reactants is the same before and after the reaction (d) Mass can neither be created nor can it be destroyed in a chemical Reaction.

Description : It is important to balance the chemical equations to satisfy the law of conservation of mass. Which of the following statements of the law is incorrect? (a) The total mass of the elements present in ... the reaction (d) Mass can neither be created nor can it be destroyed in a chemical Reaction.

Last Answer : Answer : (c) The chemical composition of the reactants is the same before and after the reaction

Why is it important to balance the equation with coefficients after you have predicted the products?

Description : Why is it important to balance the equation with coefficients after you have predicted the products?

Last Answer : Need answer

What sequence of coefficients will balance the following equation Na (s) plus O2 (g) 2Na2O (s).?

Description : What sequence of coefficients will balance the following equation Na (s) plus O2 (g) 2Na2O (s).?

Last Answer : 4,1,2

In a chemical equation the coefficients represent the what?

Description : In a chemical equation the coefficients represent the what?

Last Answer : They represent the number of molecules in a balancedequation.

In a chemical equation the coefficients represent the what?

Description : In a chemical equation the coefficients represent the what?

Last Answer : They represent the number of molecules in a balancedequation.

What part of the chemical equation tells the number of atoms of each element?

Description : What part of the chemical equation tells the number of atoms of each element?

Last Answer : That depends on the nature of the reaction. For a typicalreaction, it will be the subscript following the symbol of theelement multiplied by the coefficient. For example, in Na2SO4 therewill be 2 Na atoms, 1 S atom ... If the reaction was 2Na2SO4, there would be 4 Na atoms, 2 S atoms and 8 O atoms.

To determine the coefficients of the equation – two end-points and the two tangentvectors. This statement is true for which of the following? a.B-spline curve b.Hermite Cubic Spline Curve c.Beizer curve d.none of the above

Description : To determine the coefficients of the equation – two end-points and the two tangentvectors. This statement is true for which of the following? a.B-spline curve b.Hermite Cubic Spline Curve c.Beizer curve d.none of the above

Last Answer : b.Hermite Cubic Spline Curve

To determine the coefficients of the equation – two end-points and the two tangentvectors. This statement is true for which of the following a.B-spline curve b.Hermite Cubic Spline Curve c.Beizer curve d.none of the above

Description : To determine the coefficients of the equation – two end-points and the two tangentvectors. This statement is true for which of the following a.B-spline curve b.Hermite Cubic Spline Curve c.Beizer curve d.none of the above

Last Answer : b.Hermite Cubic Spline Curve

For the redox reaction `Zn+NO_(3)^(-)rarr Zn^(2+)+NH_(4)^(-)` is basic medium, coefficients of `Zn, NO_(3)^(-) and OH^(-)` in the balanced equation re

Description : For the redox reaction `Zn+NO_(3)^(-)rarr Zn^(2+)+NH_(4)^(-)` is basic medium, coefficients of `Zn, NO_(3)^(-) and OH^(-)` in the balanced equation re

Last Answer : For the redox reaction `Zn+NO_(3)^(-)rarr Zn^(2+)+NH_(4)^(-)` is basic medium, coefficients of `Zn, NO_(3)^(-) ... . 7, 4, 1 C. 4, 1, 10 D. 1, 4, 10

Choose the set coefficients that correctly balances the following equation : `xCr_(2)O_(7)^(2-)+yH^(+)+ze^(-)rarraCr^(+3)++bH_(2)O`

Description : Choose the set coefficients that correctly balances the following equation : `xCr_(2)O_(7)^(2-)+yH^(+)+ze^(-)rarraCr^(+3)++bH_(2)O`

Last Answer : Choose the set coefficients that correctly balances the following equation : `xCr_(2)O_(7)^(2-)+yH^(+)+ze^(-)rarraCr^(+ ... (x,y,z,a,b),(2,7,6,1,7):}`

What are the steps needed to convert the mass of an element to the number of atoms in the element?

Description : What are the steps needed to convert the mass of an element to the number of atoms in the element?

Last Answer : Need answer

In the equation of a nuclear reaction, all but one of the following quantities are equal to each other on both sides of the equation. Which quantity is NOT conserved: w) the net electric charge x) the total mass-energy y) the number of protons z) the number of nucleons

Description : In the equation of a nuclear reaction, all but one of the following quantities are equal to each other on both sides of the equation. Which quantity is NOT conserved: w) the net electric charge x) the total mass-energy y) the number of protons z) the number of nucleons

Last Answer : ANSWER: Y -- THE NUMBER OF PROTONS

Write the force balance equation of ideal spring element.

Description : Write the force balance equation of ideal spring element.

Last Answer : F = Kx Great efforts are needed to design a stable system

Write the force balance equation of ideal dashpot element.

Description : Write the force balance equation of ideal dashpot element.

Last Answer : F = B dx /dt

rite the force balance equation ohm ideal mass element.

Description : rite the force balance equation ohm ideal mass element.

Last Answer : F = M d2x /dt2

What do you often notice after balance hydrocarbon combustion reaction equation?

Description : What do you often notice after balance hydrocarbon combustion reaction equation?

Last Answer : Need answer

is this statement true or falseThe Multiplication Property of Equality states that an equation remains true if you divide both sides of the equation by the same number.?

Description : is this statement true or falseThe Multiplication Property of Equality states that an equation remains true if you divide both sides of the equation by the same number.?

Last Answer : Answers is the place to go to get the answers you need and to ask the questions you want

is this statement true or falseThe Addition Property of Equality states that an equation remains true if you add the same number to both sides of the equation.?

Description : is this statement true or falseThe Addition Property of Equality states that an equation remains true if you add the same number to both sides of the equation.?

Last Answer : 1

A minimisation problem can be connected into maximisation problem by changing the signs of coefficients in the ........................... a. Constraints b. Objectives c. Both a and b d. None of these

Description : A minimisation problem can be connected into maximisation problem by changing the signs of coefficients in the ........................... a. Constraints b. Objectives c. Both a and b d. None of these

Last Answer : b. Objectives

Why is it necessary to balance a chemical equation? -Class 8th

Description : Why is it necessary to balance a chemical equation? -Class 8th

Last Answer : We know that, according to the law of conservation of mass, the total mass of all the atoms present in the reactants should be equal to that of all the atoms present in the products. This ... . Thus balancing of chemical equation is necessary so that the law of conservation of mass may be obeyed.

“We need to balance a skeltal chemical equation.” Give reason to justify the statement. -Chemistry

Description : “We need to balance a skeltal chemical equation.” Give reason to justify the statement. -Chemistry

Last Answer : Skeltal chemical equation are unbalanced. We need to balance chemical equation because of law of conservation of mass. It states that ‘matter can neither be created nor be destroyed’. Therefore chemical equation must be balanced in each and every chemical reaction.

(a) Why is it necessary to balance a chemical equation? (b)Name two methods for balancing a chemical equation.

Description : (a) Why is it necessary to balance a chemical equation? (b)Name two methods for balancing a chemical equation.

Last Answer : a) Because a correct chemical equation must be in accordance with the law of conservation of mass according to which the total mass of the reactants must be equal to the total mass of the product. b) Hit and trial method, Oxidation number method.

Why it is necessary to balance a chemical equation ?

Description : Why it is necessary to balance a chemical equation ?

Last Answer : A chemical equation needs to be balanced so as to make the number of the atoms of the reactants equal to the number of the atoms of the products.

What says that when both sides of an equation look exactly the same their values must be equal.?

Description : What says that when both sides of an equation look exactly the same their values must be equal.?

Last Answer : I don’t know

What says that when both sides of an equation look exactly the same their values must be equal.?

Description : What says that when both sides of an equation look exactly the same their values must be equal.?

Last Answer : I don’t know

A ________________________ uses chemical symbols to represent the atoms of an element and their ratios in a chemical compound.?

Description : A ________________________ uses chemical symbols to represent the atoms of an element and their ratios in a chemical compound.?

Last Answer : chemical formula

A bucket of water is hanging from a spring balance. An iron piece is suspended into water without touching sides of bucket from another support. The spring balance reading will (A) Increase (B) Decrease (C) Remain same (D) Increase/decrease depending on depth of immersion

Description : A bucket of water is hanging from a spring balance. An iron piece is suspended into water without touching sides of bucket from another support. The spring balance reading will (A) Increase (B) Decrease (C) Remain same (D) Increase/decrease depending on depth of immersion

Last Answer : Answer: Option C

How do you work out coefficients?

Description : How do you work out coefficients?

Last Answer : First of all, thank you for asking the question this way, so that we can answer without feeling like we're doing your homework for you. That's a good thing. But the downside is your ... missing something-it wouldn't be the first time!-but you have definitely misstated something. Try again, please.

Finx the sum of coefficients of all the terms of the exapansin `(ax+y)^(n)`.

Description : Finx the sum of coefficients of all the terms of the exapansin `(ax+y)^(n)`.

Last Answer : Finx the sum of coefficients of all the terms of the exapansin `(ax+y)^(n)`. A. `""^(n)C_(0)+""^(n)C_(1)^ ... ""^(n)C_(n)` C. `2^(n)` D. None of these

For the redox reation `MnO_(4)^(-)+C_(2)O_(4)^(2-)+H^(+)rarrMn^(2+)CO_(2)+H_(2)O` The correct stoichiometric coefficients of `Mno_(4)^(-),C_(2)O_(4)^(

Description : For the redox reation `MnO_(4)^(-)+C_(2)O_(4)^(2-)+H^(+)rarrMn^(2+)CO_(2)+H_(2)O` The correct stoichiometric coefficients of `Mno_(4)^(-),C_(2)O_(4)^(

Last Answer : For the redox reation `MnO_(4)^(-)+C_(2)O_(4)^(2-)+H^(+)rarrMn^(2+)CO_(2)+H_(2)O` The correct stoichiometric ... . 16, 5, 2 C. 2, 16, 5 D. 5, 2, 16

Derive the relation between three coefficients of thermal expansion.

Description : Derive the relation between three coefficients of thermal expansion.

Last Answer : Derive the relation between three coefficients of thermal expansion.

If α, β and γ are coefficients of linear, area l and volume expansion of a solid then

Description : If α, β and γ are coefficients of linear, area l and volume expansion of a solid then

Last Answer : If α, β and γ are coefficients of linear, area l and volume expansion of a solid then (A) α:β:γ 1:3:2 (B) α:β:γ ... C) α:β:γ 2:3:1 (D) α:β:γ 3:1:2

How does the method for solving equations with fractional or decimal coefficients and constants compare with the method for solving equations with an integer coefficients and constants?

Description : How does the method for solving equations with fractional or decimal coefficients and constants compare with the method for solving equations with an integer coefficients and constants?

Last Answer : The answer depends on how advanced your methods are. In general,the methods are the same except that if you have repeatingdecimals, they may cause rounding errors.

What are the correct coefficients in correct order Al2CO33 plus ZnCl2 ZnCO3 plus AlCl3 what are the coefficiants?

Description : What are the correct coefficients in correct order Al2CO33 plus ZnCl2 ZnCO3 plus AlCl3 what are the coefficiants?

Last Answer : What is the answer ?

the coefficients of volume change and compressibility of a soil sample are 6.75 × 10-2 and 3 × 10-2 respectively, the void ratio of the soil sample, is (A) 1.10 (B) 1.15 (C) 1.20 (D) 1.30

Description : the coefficients of volume change and compressibility of a soil sample are 6.75 × 10-2 and 3 × 10-2 respectively, the void ratio of the soil sample, is (A) 1.10 (B) 1.15 (C) 1.20 (D) 1.30

Last Answer : Answer: Option D

Pick up the correct statement from the following: (A) When stress decreases, void, ratio decreases (B) When stress decreases, coefficient of permeability decreases (C) When stress decreases, coefficient of volume change decreases (D) When stress decreases void ratio, coefficients of permeability and volume change decrease

Description : Pick up the correct statement from the following: (A) When stress decreases, void, ratio decreases (B) When stress decreases, coefficient of permeability decreases (C) When stress ... change decreases (D) When stress decreases void ratio, coefficients of permeability and volume change decrease

Last Answer : Answer: Option D

The coefficients of permeability of soils of an unconfined aquifer and another confined aquifer were determined by pumping water from the wells and observing the effect of water table in two test wells at equal distances was found to be equal. The total height of confined aquifer H is given by (A) H = h2 - h1 (B) H = h1 - h2 (C) H = h2 + h1 (D) ½ (h1 + h2)

Description : The coefficients of permeability of soils of an unconfined aquifer and another confined aquifer were determined by pumping water from the wells and observing the effect of water table in two test wells at equal distances was found to be equal. ... (B) H = h1 - h2 (C) H = h2 + h1 (D) ½ (h1 + h2)

Last Answer : Answer: Option D

42. _____ assumption means the prior knowledge of all the coefficients in the objective function , the coefficients of the constraints and the resource values a. Proportionality b. Certainty c. Finite choices d. Continuity

Description : 42. _____ assumption means the prior knowledge of all the coefficients in the objective function , the coefficients of the constraints and the resource values a. Proportionality b. Certainty c. Finite choices d. Continuity

Last Answer : b. Certainty

The lateral earth pressure coefficients of a soil, Ka for active state, Kp for passive state and Ko for at-rest condition, compare as : (a) Ko < Ka < Kp (b) Ka < Ko < Kp (c) Ka < Kp < Ko (d) Kp < Ko < Ka

Description : The lateral earth pressure coefficients of a soil, Ka for active state, Kp for passive state and Ko for at-rest condition, compare as : (a) Ko < Ka < Kp (b) Ka < Ko < Kp (c) Ka < Kp < Ko (d) Kp < Ko < Ka

Last Answer : (b) Ka < Ko < Kp

What is the drawback of static coefficients?

Description : What is the drawback of static coefficients?

Last Answer : The main draw back of static coefficient is that it does not show the variation of error with time and input should be standard input.

In Leontief’s model own input coefficient’s are less than---- (a) Four (b) Three © Two (d) One

Description : In Leontief’s model own input coefficient’s are less than---- (a) Four (b) Three © Two (d) One

Last Answer : (d) One

In maximisation cases, ....................... are assigned to the artificial variables as their coefficients in the objective function. a. + m b. – m c. 0 d. None of these

Description : In maximisation cases, ....................... are assigned to the artificial variables as their coefficients in the objective function. a. + m b. – m c. 0 d. None of these

Last Answer : a. + m

The forecasting model that pools the opinions of a group of experts or managers is known as the……… (a) sales force composition model ; (b) jury of executive opinion model (c) consumer market survey model ; (d) management coefficients model

Description : The forecasting model that pools the opinions of a group of experts or managers is known as the……… (a) sales force composition model ; (b) jury of executive opinion model (c) consumer market survey model ; (d) management coefficients model

Last Answer : (b) jury of executive opinion model

Two materials have resistance temperature coefficients of 0.004 and ...

Description : Two materials have resistance temperature coefficients of 0.004 and 0.0002 respectively at a given temperature. In what ratio should the wires made of these materials be connected in series so as to have an overall temperature coefficient of 0.002?

Last Answer : Two materials have resistance temperature coefficients of 0.004 and 0.0002 respectively at a given temperature. In 9:10 ratio should the wires made of these materials be connected in series so as to have an overall temperature coefficient of 0.002.

If we multiply or divide both sides of a linear equation with a non-zero number, then the solution of the linear equation. -Maths 9th

Description : If we multiply or divide both sides of a linear equation with a non-zero number, then the solution of the linear equation. -Maths 9th

Last Answer : (b) By property, if we multiply or divide both sides of a linear equation with a non-zero number, then the solution of the linear equation remains the same i.e., the solution of the linear equation is remains unchanged.

If we multiply or divide both sides of a linear equation with a non-zero number, then the solution of the linear equation. -Maths 9th

Description : If we multiply or divide both sides of a linear equation with a non-zero number, then the solution of the linear equation. -Maths 9th

Last Answer : (b) By property, if we multiply or divide both sides of a linear equation with a non-zero number, then the solution of the linear equation remains the same i.e., the solution of the linear equation is remains unchanged.

What is an atom that has the same number of protons as other atoms of the same element but different number of nutrons?

Description : What is an atom that has the same number of protons as other atoms of the same element but different number of nutrons?

Last Answer : Feel Free to Answer

All atoms with the same number of ______ in the atomic nucleus are the same element?

Description : All atoms with the same number of ______ in the atomic nucleus are the same element?

Last Answer : progdk

All atoms of a given element have exactly the same number of which type of subatomic particle?

Description : All atoms of a given element have exactly the same number of which type of subatomic particle?

Last Answer : Protons A+

Atoms of the same element having same atomic number and different mass number are known as?

Description : Atoms of the same element having same atomic number and different mass number are known as?

Last Answer : Isotopes