Which balanced equation represents a redoxreaction?
(1) CuCO3(s) ==> CuO(s) + CO2(g)
(2) 2KClO3(s)==>2KCl(s) + 3O2(g)
(3) AgNO3(aq) + KCl(aq) ==>AgCl(s) + KNO3(aq)
(4) H2SO4(aq) + 2KOH(aq)==> K2SO4(aq) + 2H2O(l)

Answers

Answer 1
Answer: Option no. 2  Balanced equation     

2KClO3(s)⇒2KCl(s) + 3O2(g)
      K=2             K=2
      Cl=2            Cl=2
      O=6             O=6


Related Questions

(giving away 10 points)at what position of the earth in its orbit is it summertime in the northern hemisphere Position 2 position1 position4 position3
The Due Process Clause guarantees thata. the National Government will not interfere with constitutional rights. b. States are not bound by their State constitutions in matters of individual rights. c. States will not deny people any basic or essential liberties. d. State governments will police the National Government.
Compared to a proton, an electron has(1) a greater quantity of charge and the same sign(2) a greater quantity of charge and the opposite sign(3) the same quantity of charge and the same sign(4) the same quantity of charge and the opposite sign
Which of the following instruments is used to measure air pressure? A. Thermometer B. Barometer C. Hygrometer D. Anemometer
Calculate the number of moles230 g of C2H5OH 560 g of C2H4 0.640 g of SO2

The table below gives information about the nucleus of each 4 atoms Atom Number of protons Number of neutrons

A 6 6

D 6 7

G 7 7

E 7 8

How many different elements are represented by the nuclei in the table?

A 1

B 2

C 3

D 4

Answers

Atom Number of protons Number of neutrons. 2 elements are represented by the nuclei in the table

What is the difference between atomic number and atomic mass ?

Atomic number of an element  is defined as total number of protons present in the nucleus, neutrons carry no net electrical charge, so it is the charge number of the nucleus.

atomic mass of an element can be defined as the atomic weight is measured total mass of an element’s atom, the total number of neutrons and protons in the nucleus of an atom.

Both Atomic mass and an atomic number of elements are closely related if  atomic number is high, then the atomic mass is also said to be high.

For more details regarding fire atomic number , visit

brainly.com/question/16858932

#SPJ2

Answer:

B.

Explanation:

BECAUSE IT IS B.

What are the 5 areas of chemistry

Answers

The 5 main branches of chemistry are physics, analytical, biochemistry, organic chemistry, and inorganic chemistry.

In the Bronsted-Lowery definition, an an acid is a substance that.. a. donates protones b. accepts protones c. neutralizes hydronium ions d. forms a salt

Answers

Answer:

A

Explanation:

acids have weak bonds between hydrogen atoms and (usually) oxygen, which results in its ability to donate the protone

A non-metal usually forms 2 covalent bonds in its compounds.How many electrons will it take in its valence shell?

Answers

It will take 8 electrons in its valence shell.

.How many electrons will it take in its valence shell?

This non-metal usually forms 2 covalent bonds. This leads me to believe that it has 6 valence electrons, to begin with, and will take 2 more, one from each bond. Such that it ends with a full valence shell of 8 electrons.

In covalent bonds, non-metals share electrons to attain full valence shells.

How many electrons are present in nonmetal in their outermost shell?

Most of the non-metals have 4 to 7 electrons in their valence shells. Formation of ions: Non-metals tend to accept electrons in their valence shell to form negatively charged ions called anions.

Learn more about valence shell here: brainly.com/question/15076797

#SPJ2


In covalent bonds, non-metals share electrons to attain full valence shells.

This non-metal usually forms 2 covalent bonds. This leads me to believe that it has 6 valence electrons to begin with and will take 2 more, one from each bonds. Such that it ends with a full valence shell of 8 electrons.

The elements in the middle of the periodic table are known as:a. Noble elements
c. Transition elements
b. Heavy metals
d. Covalent elements

Answers

Answer:

The correct answer is c. Transition elements

Explanation:

Transition elements are often called transition metals and are located in the middle of the Periodic Table, in the d-block (because they have an incomplete d-orbital). They are all metals, for example: iron (Fe), copper (Cu), titanium (Ti), etc, and they have high melting and boiling points.

Which of the following quantities is the largest?0.00001101 kg
0.001011 g
0.000001101 kg
0.0001011 g

Answers

For this case, the first thing we are going to do is convert all the numbers to the same unit.

For this, we use the following conversion:

1 Kg = 1000 g

We then have the following numbers:

1) 0.00001101 kg = (0.00001101) * (1000) = 0.01101 g

2) 0.001011 g

3) 0.000001101 kg = (0.000001101) * (1000) = 0.001101 g

3) 0.0001011 g

Therefore, the largest amount in grams is:

0.01101 g

Answer:

0.00001101 kg = 0.01101 g

option 1

A is the Largest I believe