Write the balanced equation for the production of oxygen gas and potassium chloride from the decomposition of potassium chlorate.

Answers

Answer 1

Answer:

2KClO₃→3O₂ + 2KCl

Explanation:

When Potassium Chlorate decomposes , the resulting products are oxygen gas and Potassium chloride . As per the equation above


Related Questions

Examine the reaction. NH4OH(aq) →H2O(l) + NH3(g)
What coefficients will balance the equation?
A) 1, 1, 1
B) 3, 3, 4
C) 2, 1, 2
D) 1, 2, 2

Answers

Answer:  A.  1,1,1

Explanation:

The coefficients that will balance the equation; NH4OH(aq) →H2O(l) + NH3(g), is 1, 1, 1, because it proves the total number of atoms of each element on the LHS and RHS of the equation are equal, hence balanced.

LHS          RHS

N = 1            1

H = 5          5

O = 1            1

10 grams of sodium hydroxide, NaOH, is dissolved in 0.25 liters of solution. Determine the molarity (M)

Answers

Answer:

1M

Explanation:

The molarity of a substance is defined as the number of moles of the substance divided by how many liters the solution is. NaOH has a molar mass of about 40 grams, meaning that 10 grams of it would be 0.25 moles. 0.25/0.25= a molarity of 1.

Hope this helps!

You’re trying to remove dissolved iron from a solution. The theoretical yield for a reaction between sodium sulfide and iron(III) bromide is 0.721 kilogram of solid iron(II) sulfide. When you carried out the reaction, you got 530.0 grams. What is the percent yield?

FREEBE HAVENT SEEN THIS QUESTION YET


ANSWER!!!
The percent yield of the reaction is 73.5%

Answers

Answer:

73.5%

Explanation:

Step 1:

Data obtained from the question.

Theoretical yield = 0.721Kg

Actual yield = 530g

Percentage yield =..?

Step 2:

Conversion of 0.721Kg to grams. This is illustrated below:

1Kg = 1000g

Therefore, 0.721Kg = 0.721 x 1000 = 721g

Step 3:

Determination of the percentage yield.

The percentage yield can be obtained by using the following formula:

Percentage yield = Actual yield /Theoretical yield x 100

Percentage yield = 530/721 x 100

Percentage yield = 73.5%

Therefore, the percentage yield is 73.5%

Answer:

73.5%

Explanation:

plato

When calcium is allowed to react with nitrogen, calcium nitride is formed. If 24.0 g of calcium and 12.0 g of nitrogen are available for this reaction, the limiting reagent will be?

Answers

what are the mol ratios? if you’re just comparing with the mass (which i doubt so since most limiting questions require u to compare the mols)

but if u are, the limiting would be nitrogen since it’s lesser than calcium mass

9. Determine the number of protons, neutrons, and electrons in one 'H' ion. Explain how you found your
answer.​

Answers

Answer:

'H' ion has only one proton and do not have any electron and neutron.

Explanation:

Hydrogen atom has only one electron and one proton and when it loses that electron, hydrogen ion (H+) is formed which is positively charged (charge of +1) and referred as a proton.

So, hydrogen ion do not left with any electrons or have zero electrons.

Hydrogen (H) atom do not have any neutrons in its tiny nucleus, so hydrogen ion (H+) also do not have neutrons.

Hence, 'H' ion (H+) has only proton and zero electron and neutron.

someone tell me how to balance the equation by hit and trial method...​

Answers

Answer:

1. 3H2S + 2HNO3 -----> 2NO + 4H2O + 3S

Explanation:

H2S + HNO3 ----->  NO + H2O + S

There are 3 O's on left and  only 2 on right so  put 2 before NO:

H2S + HNO3 ----> 2NO + H2O + S

Now we have 2 N's on left so put 2 before HNO3:

H2S + 2HNO3 -----> 2NO + H2O + S

4 H's on the left so

H2S + 2HNO3 -----> 2NO + 2H2O + S

That makes 6 O's on left so  we write

H2S + 2HNO3 ----> 2NO + 4H2O + S

Now there 8 H's on the right but only 4 on the right so we adjust H2S and S:

3H2S + 2HNO3 -----> 2NO + 4H2O + 3S

Now it balances!

Basically you 'play around' with the  quantities of each element in this way.

Which instrument would be used to measure
the mass of a small stone?
I
1. graduated cylinder
2. Celsius thermometer
3. triple-beam balance
4. metric ruler

Answers

Answer:

3. Triple Beam Balance

Explanation:

A triple beam will be most suitable for measuring the mass of a small stone because it is very accurate, and has a reading error of +/- 0.05 gram.

Solve for P2 when P1 = 2.0 atm V1 = 8.0 L and V2 = 32 L
This is a Boyle’s law has problem

Answers

P1/V1=P2/V2
2/8=x/32
X=2 multiplied by 32 divide by 8
P2=8atm

What is the volume occupied by 3.00 mol of hydrogen gas at STP? *

Answers

Answer: V=67.2 L

Explanation:

For this problem we will need to use the Ideal Gas Law.

Ideal Gas Law: PV=nRT

P=1.00 atm (STP)

V=?

n=3.00 mol

R=0.08206Latm/Kmol

T=273.15 K (STP)

To find V, we would manipulate the equation to V=nRT/P

[tex]V=\frac{(3.00 mol)(0.08206Latm/Kmol)(273.15K)}{1.00 atm}[/tex]

[tex]V=67.244 L[/tex]

With significan figures, our answer is V=67.2 L.

what is the substitution reaction
plzz answer ​

Answers

Answer:

it is a reaction whereby one or more reactants of the reaction are changed or replaced .

Explain why the boiling point of H2S with relative molecular mass 34 is lower than that of H2O with relative molecular mass 18​

Answers

Answer and Explanation:

In H2O molecules, due to formation of intermolecular hydrogen bonds, there is molecular association. Large amount of energy is required to break these intermolecular hydrogen bonds. Intermolecular hydrogen bonding is not possible in H2S. Hence, its boiling point is lower and is a gas.

What is the number of moles of KF in a 29-gram sample of the compound?


A) 1.0 mol

B) 2.0 mol

C) 0.50 mol

D) 5.0 mol



Answers

Answer:

C. 0.50 mol

Explanation:

Number of mole= mass /molar mass

Mass of KF is given as 29g

The molar mass of KF= 39+19= 58g/mol

No of mole= mass/ molar mass

= 29g/58g/mol

1/2 mol= 0.5 mol

Answer:

C) 0.50 mol

Explanation:

Hello,

In this case, we study this mole-mass relationship by using the molar mass of potassium fluoride (KF) which is 58.1 g/mol to compute the required number of moles in the 29-g sample as shown below:

[tex]n_{KF}=29gKF*\frac{1molKF}{58.1gKF} \\\\n_{KF}=0.50molKF[/tex]

Therefore answer is C) 0.50 mol.

Best regards.

In the reaction AgNO3(aq) + NaCl(aq) –
NaNO3(aq) + AgCl(s), the reactants
(1) gain electrons only
(2) lose electrons only
(3) both gain and lose electrons
(4) neither gain nor lose electrons

Answers

(4); this is a double replacement reaction

Can someone help me for one of these questions it would mean a lot pls

Answers

Answer:

Hope this helps you

Which statement about electric charge is true? A. Electric charge is created by an electric current. B. Electric charge influences whether objects attract or repel one another. C. Electric charge tends to be neutral in the nuclei of atoms. D. Electric charge will increase with an increase in temperature.

Answers

Answer:

A

Explanation:

Answer:

Electrical forces can act from a distance

Explanation:

A. Because electrical forces act at a distance, charged objects brought near a neutral object will cause electrons on the neutral object to rearrange their position

Carbon monoxide reacts with oxygen to produce carbon
dioxide. The given reaction is an example of

Answers

oxidation

CO + O = C

as u can see, the oxgyen has been reduced

What is the concentration of a solution with a volume of 660L that contains 33.4g of AlCO3?

Answers

Answer:

The concentration of the solution is 5.8168 × [tex]10^{-4}[/tex] mol.[tex]dm^{-3}[/tex]

Explanation:

Here, we want to calculate the concentration of the solution.

The unit of this is mol/dm^3

So the first thing to do here is to calculate the number of moles of the solute present, which is the number of moles of AlCO3

The number of moles = mass/molar mass

molar mass of AlCO3 = 27 + 12 + 3(16)  = 27 + 12 + 48 = 87g/mol

Number of moles = 33.4/87 = 0.384 moles

This 0.384 moles is present in 660 L

x moles will be present in 1 dm^3

Recall 1 dm^3 = 1L

x * 660 = 0.384 * 1

x = 0.384/660 = 0.00058168 = 5.8168 * 10^-4 mol/dm^3

Homogeneous mixtures are:
a. Mixtures that have 1 phase or layers
b. Solutions that consists of only one type of atom
c. Two or more elements that have been chemically combined
d. Solutions that consists of two or more elements

Answers

C) two or more elements that have been chemically combined
C. Because homo in homogeneous means same. So when they’re chemically combined, they are pretty much “the same”

The alcohol family has properties similar to_____. HCl H2O NaCl H2SO4

Answers

Answer: H2O

Explanation: The alcohol family has properties similar to H2O.

Answer:

H2O

Explanation:

Four satellites are in orbit around the Earth. The heights of their four orbits
are identical. The masses of the four satellites are given in the table. For
which satellite is the gravitational pull of Earth the strongest?
Satellite
Mass (kg)
A
500
B
400
700
600
O A. Satellite A
O B. Satellite B
O C. Satellite
O D. Satellite D

Answers

Answer:

Option C. Satellite C.

Explanation:

The gravitational pull of the earth talls about the weight of an object.

To know which of them has the greatest gravitational pull, let us determine the weight of each satellite.

For satellite A:

Mass = 500Kg

Acceleration due to gravity (g) = 9.8m/s²

Weight (W) =.?

Weight (W) = mass (m) x Acceleration due to gravity (g)

W = m x g

W = 500 x 9.8

W = 4900N

For satellite B:

Mass = 400Kg

Acceleration due to gravity (g) = 9.8m/s²

Weight (W) =.?

W = m x g

W = 400 x 9.8

W = 3920N

For satellite C:

Mass = 700Kg

Acceleration due to gravity (g) = 9.8m/s²

Weight (W) =.?

W = m x g

W = 700 x 9.8

W = 6860N

For satellite D:

Mass = 600Kg

Acceleration due to gravity (g) = 9.8m/s²

Weight (W) =.?

W = m x g

W = 600 x 9.8

W = 5880N

Satellite >> Mass >>> Gravitational pull

A >>>>>>>> 500Kg >> 4900N

B >>>>>>>> 400Kg >> 3920N

C >>>>>>>> 700Kg >> 6860N

D >>>>>>>> 600Kg >> 5880N

From the above calculations we can see that satellite C has the greatest gravitational pull.

name two gases which are supplied in compressed form in homes and hospitals​

Answers

Explanation:

lpg and oxygen are two gases which are supplied in compressed form in homes and hospitals

Answer:

lpg and oxygen

they are the two gases which are supplied in either a gas form or any other medical forms in homes and hospitals to look after the ill patients or family members

Round to 3 significant figures.
1.235

Answers

Answer:

1.24

Explanation:

According to the concept of significant figures, rounding off to  3 significant figures gives 1.24.

What are significant figures?

Significant figures are used for establishment  of a number which is presented in the form of digits. These digits give a meaningful representation  to the numbers.

The significant figures are the significant digits which convey the meaning according to the accuracy. These provide precision to the numbers and hence are called as significant numbers.There are rules for counting significant figures which are as follows:

1)All non-zero digits are significant .

2)All zeroes which occur between non-zero digits are significant.

3)All zeroes to the left and right of  a non-zero digit are not significant.

4) All zeroes on right  of decimal are significant if a non-zero number follows them.

5)All zeroes on right side of non-zero digit are significant.

Learn more about significant figures,here:

https://brainly.com/question/29153641

#SPJ7

state true or false soil contains only in organic materials​

Answers

Answer:

false

Explanation:

the soil contain: organic materials, and inorganic materials

what are the properties of sound waves​

Answers

Answer:

The 5 properties are wavelength, amplitude, time-period, frequency and velocity/speed.

Explanation:

Answer:

the correct answer is sound wave can be described by five chacteristics:wavelength, amplitude,time-period, frequency and velocity or speed.

Explanation:

hope this helps !!!!

35. The hydrocarbon formed during electrolysis of potassium maleate is
a)methane
b)ethane
c)ethene
d)ethyne

Answers

Answer:

methane

Explanation:

Which compound is an isomer of propanoic acid (CH3CH2COOH)?

A) CH2CHCOOH
B) CH3CH2CH2COOH
C) CH3CH(OH)CH2OH
D) HCOOCH2CH3

Answers

Answer:

D) HCOOCH2CH3

Explanation:

An isomer of a compound is defined as a chemical substances with the same formula (That is, same atoms) but in different structures.

For propanoic acid, there are 3 atoms of C, 6 atoms of H and 2 atoms of oxygen.

A) CH2CHCOOH . Here you have 3 atoms of C but 4 atoms of H. That means this compound is not an isomer.

B) CH3CH2CH2COOH . Here, there are 4 atoms of C. Thus, is not an isomer.

C) CH3CH(OH)CH2OH. This structure has 3 atoms of C, but 8 atoms of H. Thus, is not an isomer.

D) HCOOCH2CH3. Here, there are 3 atoms of C, 6 atoms of H and 2 atoms of O. Thus, this structure is an isomer of propanoic acid.

Answer:

D) HCOOCH2CH3

Explanation:

Option D is an isomer of propanoic acid because this compound has the same number of atoms as the acid; 3 carbons, 6 hydrogens and 2 oxygen. They may differ in some properties but their main difference must be their molecular structure, that is, the arrangement of their atoms.


Rubidium will react with oxygen in which of the following formulas?

RbO
RbO2
Rb2O
Rb3O2

Answers

Answer:

C-Rb20

Explanation:

The chemical formula for Rubidium oxide is Rb20.

Hope this helps!

Which compound is a saturated hydrocarbon?
A) 2-pentanone B) 2-pentene C) pentane D) pentanal

Answers

The answer is the first one because it’s a compound of two words separate when you say it :) hope this helps !

In this equation, what should be the coefficients of the reactants and products? I2 + O2 → I4O9

Answers

Answer:

4 i2  + 9 O2 --> 2 i4O9

Explanation:

4 i2 + 9 O2 => 2 i4O9

. Se dispone de una muestra impura de aluminio de 50g. Se hace reaccionar con sulfú rico para encontrar su riqueza. Hallar la riqueza sabiendo que se obtienen 28g de sal.

Answers

Answer:

9.32% de riqueza de Al en la muestra

Explanation:

La reacción de aluminio (Al) con ácido sulfúrico (H₂SO₄) es:

2 Al + 3 H₂SO₄ → Al₂(SO₄)₃ + 3 H₂

Dos moles de aluminio reaccionan con 3 moles de ácido sulfúrico para producir una mol de sulfato de aluminio (Sal).

Las moles de 28g de sulfato de aluminio (Masa molar: 324.15g) son:

28g ₓ (1 mol / 324.15) = 0.0864 moles de Al₂(SO₄)₃

Así, las moles de aluminio que reaccionaron fueron:

0.0864 moles de Al₂(SO₄)₃ ₓ ( 2 moles Al / 1 mol Al₂(SO₄)₃) =

0.1728 moles de Al. En gramos (Masa atómica: 26.98g/mol):

0.1728 moles Al ₓ (26.98g / mol) = 4.66g de aluminio.

Así, la riqueza de la muestra es:

4.66g Al / 50g muestra ₓ100 = 9.32% de riqueza de Al en la muestra

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