Chemistry High School

HELP A #QUEEN OUT !!!!!!

Select the correct answer.

Which reaction is a decomposition reaction?

A.
2KClO3 → 2KCl + 3O2
B.
4Na + O2 → 2Na2O
C.
ZnS + 3O2 → 2ZnO + 2SO2
D.
2NaBr + CaF2 → 2NaF + CaBr2

Answers

Answer 1
A but remove the coefficients from kcl and 3
Answer 2

Answer: 2KClO3 → 2KCl + 3O2

Explanation: it's the only one that was broken down into more parts than the start, the rest were simply reseperated

this one : 1 → 2

b : 1 + 1 = 2

c : xy+ wz  → wy + xz

d : qwer +tyuio → qwui + tyero

ALSO I got it right

HELP A #QUEEN OUT !!!!!!Select The Correct Answer.Which Reaction Is A Decomposition Reaction?A. 2KClO3

Related Questions

What are some things that all plants need to grow?

Answers

Answer:

sunlight, water, carbon dioxide, soil, are the basics which you also have phosphorus and nitrogen

Which property of a substance determines whether the substance is a liquid or a solid at room temperature?
a) melting point
b) flexibility
c) solubility
d) conductivity

Answers

Answer:

a) melting point

The Himalayan balsam plant makes seeds in pods and releases them when it is ready, while the Surinam toad absorbs its eggs into its own back until they are ready to come out. How are the adaptations of the balsam and the toad similar?

A: They are behaviors that allow the plant and the animal to reproduce through shorter life cycles.

B: They are behaviors that protect the plant and the animal from predators.

C: They are life cycle differences that protect the offspring and help them to survive.

D: They are physical characteristics that allow the offspring to survive in cold weather conditions.

Answers

Answer:a

Explanation:

Answer:

A

Explanation:

Two reactant particles collide with proper orientation. The collision will be
effective if the particles have
(A) sufficient potential energy
(B) high activation energy
(C) high ionization energy
(D) sufficient kinetic energy
And explain why

Answers

Answer: D) Sufficient kinetic energy

Explanation:

Under what conditions is a real gas closely approximated by an ideal gas?

Answers

Correct If not right, but, In low temperatures intermolecular forces also increase, since molecules move more slowly, similar to what would occur in a liquid state. Just remember that ideal gas behavior is most closely approximated in conditions that favor gas formation in the first place—heat and low pressure. me.

The Concrete that surrounds a swimming pool takes less time to heat up than the water in the pool. Why

Answers

Answer:

The Concrete has a lower specific heat.

Explanation:

What are the four organelles that process, transport, and stone materials?ANSWER QUICK PLZZ no website

Answers

The four organelles that process, transport, and have some materials are the nucleus and ribosomes the genetic control of the cell. Endoplasmic reticulum that make, distribute, and break down molecules. Mitochondria and chloroplasts for energy processing. Lastly the cytoskeleton, plasma membrane, and cell wall

How are ball and sticks and space filling are similar ?

Answers

Answer:

Ball and stick models are three-dimensional models where atoms are represented by spheres of different colors and bonds are represented by sticks between the spheres. ... Space fill models are similar to ball and stick models in that they are three-dimensional models that represent atoms as colored spheres.

For this reaction: ____NH3 + ____O2  ____NO + ____H2O a. How many moles of oxygen are needed to react with 3.24 moles of ammonia?

Answers

Answer:

uhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh this is hard I'm a come back when I solve it

1. Write the chemical symbol for each of the following elements.

Aluminum
Beryllium
Calcium
Flourine
Neon
Nitrogen
Silicon
Silfur

2. Write the name of the element for each of the following symbols.

Ar
B
Li
Na
Fe

3. What is the atomic number for the following elements?

C
Fe
Pb
O
N
Zn

Answers

Answer:

Chemical symbol:

Aluminum:Al

Berylium: Be

Calcium: Ca

Flourine: F

Neon: Ne

Nitrogen: N

Silicon: Si

Silfur: S

Element name

Ar: Argon

B: Boron

Li: Lithium

Na: Sodium

Fe: Iron

Atomic number

C:6

Fe: 26

Pb: 82

O: 8

N: 7

Zn: 30

Answer:

aluminum- Al

beryllium- Be

calcium- Ca

flourine- F

neon- Ne

nitrogen- N

silicon- Si

sulfur- S

_____________________________________________________

Ar- argon

B- boron

Li- lithium

Na- sodium

Fe- iron

______________________________________________________

C- 6

Fe- 26

Pb- 82

O- 8

N- 7

Zn- 30

Explanation:

A covalent bond is formed when two atoms reach a stable state that balances:

MARK TWO RESPONSES

A
the repulsion between the nucleus protons of one atom to the electrons of the other atom


B
the attraction between the nucleus of one atom to the electrons of the other atom


C
the attraction between the two nuclei of the atoms, which both contain protons


D
the repulsion between the two nuclei of the atoms, which both contain protons

Answers

Answer:

B and I think A but you may want a secon opinion on that

Explanation:

I know that electrons are shared with covalent bonds so I assume the 2 answers are the ones with electrons it them

B and A

Explanation : ^

Balance the following equation: Fe2O3 + H2O --> Fe(OH)3
A.3,2,1
B.2,2,3
C.1,3,2
D.5,2,10

Answers

Answer:

answer is c

Explanation:

hope it helps!!!

what is elastic energy ​

Answers

Answer:Elastic energy is energy stored in an object for temporary strain. It is basically potential energy.

If 5.7 mol Cl2 reacts with Na , how many grams of NaCl could be formed? The
molar mass of NaCl is 58.44 g/mol

Answers

Answer:

666.22grams

Explanation:

The balanced chemical equation of this reaction is given as follows:

2Na + Cl2 → 2NaCl

Based on the above equation, 1 mole of Chlorine gas (Cl2) is needed to produce 2 moles of sodium chloride (NaCl).

Therefore, 5.7moles of Cl2 will react to produce (5.7 × 2) = 11.4moles of NaCl.

Note that, the mass of NaCl was asked in this question. We find the mass of NaCl from the mole by using the formula;

moles = mass/molar mass

Molar mass of NaCl = 58.44 g/mol

11.4 = mass/58.44

mass = 58.44 × 11.4

mass = 666.22grams.

A gas is most likely to change the liquid phase in the pressure of the gas

Answers

Answer: if pressure rises in closed vessel and temperature is low enough,

Gas may condense to liquid state

Typically, this happens when we raise the pressure at room temperature, but there are other situations that aren't covered, including lowering the temperature at room pressure.

What is temperature?

Temperature is defined as a measurement of an object or substance's warmth or coldness in relation to a standard value.  As opposed to extensive characteristics, like mass or volume, temperature is referred to as an intense property—one that is independent of the quantity of matter being considered—along with pressure, density, and other comparable properties.

If the temperature is low enough and pressure rises in a closed vessel, A gas can turn into a liquid form.

Thus, typically, this happens when we raise the pressure at room temperature, but there are other situations that aren't covered, including lowering the temperature at room pressure.

To learn more about temperature, refer to the link below:

https://brainly.com/question/11464844

#SPJ2

Zr + O ⇒
B + O ⇒
Zn + C ⇒
Co + I ⇒
Mg + Br ⇒

Answers

WHAT- WHAT GRADE R YOU IN 0,0


yield for this reaction?
Reaction: N2(g) + 3 H2(g) → 2 NH3 (g)

Answers

Answer:

Yes, yield.

Explanation:

N2(g) + 3 H2(g) → 2 NH3 (g) balanced equation

First, find limiting reactant:  

Moles H2 = 1.83 g x 1 mole/2 g = 0.915 moles H2

Moles N2 = 9.84 g N2 x 1 mole/28 g = 0.351 moles N2

The mole ratio of H2: N2 is 3:1, so H2 is limiting (0.915 is less than 3 x 0.351)

Theoretical yield of NH3 = 0.915 mol H2 x 2 mol NH3/3 mol H2 = 0.61 moles NH3

Which of the following is not a compound?
Cl
CO2
NaCl
HCl​

Answers

The one that is not a compound is Cl

Plz someone help, really struggling
How many liters of carbon monoxide are needed to react with 32.65 g oxygen gas to produce carbon dioxide?

Answers

Answer:

22.9 Liters CO(g) needed

Explanation:

2CO(g)     +   O₂(g)    =>    2CO₂(g)

? Liters          32.65g

                 = 32.65g/32g/mol

                 =   1.02 moles O₂

Rxn ratio for CO to O₂ = 2 mole CO(g) to 1 mole O₂(g)

∴moles CO(g) needed = 2 x 1.02 moles CO(g) = 2.04 moles CO(g)

Conditions of standard equation* is STP (0°C & 1atm) => 1 mole any gas occupies 22.4 Liters.

∴Volume of CO(g) = 1.02mole x 22.4Liters/mole = 22.9 Liters CO(g) needed

___________________

*Standard Equation => molecular rxn balanced to smallest whole number ratio coefficients is assumed to be at STP conditions (0°C & 1atm).


2. Which of the following is/are TRUE regarding net ionic equations?

A. Net ionic equations show only the particles directly involved in the
chemical change.
B. Spectator ions are included in complete equations, but not in net ionic
equations.
C. lonic charges do not need to be balanced in a net ionic equation.
D. Combustion, combination, and decomposition reactions can be written as
net ionic equations.

Answers

A and B are true.

C and D are false.

Out of the given four statements, A and B are only correct.

Explanation:

In the complete equation of a chemical reaction, the complete symbols of reactants and products are written along with states of matter under conditions at which the reaction is taking place.In the net ionic equation of a chemical reaction, only those chemical species are written which directly participating in the chemical reaction.The mass and charge in the net ion equation must be balancedIt is used in neutralization reactions, redox reactions, double displacement reactions.

So from this, we can conclude that out of the given four statements, A and B are only correct.

Learn more about the net ionic equation here:

brainly.com/question/7018960?referrer=searchResults

brainly.com/question/19510514?referrer=searchResults

Will carbon and hydrogen atoms most likely form an ionic bond or a covalent bond?

Answers

answer is covalent bond because carbon has 4 valence electron and shared them hence it is a covalent bond.
Answer: Covalent bond

Calculate the pH is the
concentration of [H+] = 1.00x 10^-11

Answers

Answer:

1e - 11

Explanation:

A mass of 0.30 kg is attached to a spring that has a spring constant of 210 N/m. What will be the period of this system?

Answers

Answer:

its A hope this helps

Explanation:

State the four things that make up your
health:

Answers

Answer: “Health is a state of complete physical, mental, and social well-being and not merely the absence of disease or infirmity or diet, exercise, mental and social.

why is science so disgusting?

Answers

Well, it’s just like that. Life and all
i know right, since i agree can i have crown please

STEP BY STEP: A+B(x)

what is the number of moles of solute in 250 mL of a .80M solution

Answers

Answer:

There are 0.1 moles of solute in 250 mL of 0.4 M solution

Explanation:

because it is

What 2 phases of the water cycle most affect the imbalance of each of these?

Answers

Answer:

gas and leqwed

Explanation:

leqwed goes to gas

Answer: evaporation and precipitation

chem question!!
please help!!!

Answers

Cu is the answer... :)

zinc + hydrogen arsenate—>

What type of reaction is this? (Synthesis, Decomposition, or Single Replacement?

Answers

Answer:

Single Replacement

Explanation:

im just smart lol

What quantity of copper is deposited by the same quantity of electricity that deposited 9g of aluminum

Answers

Answer:

Mass of copper deposited = 31.75 g

Explanation:

According to Faraday's second law of electrolysis, when the same quantity of electricity is passed through different electrolytes, the relative number of moles of the elements deposited are inversely proportional to the charges on the ions of the elements.

From this law, it can be seen that the higher the charge, the lower the number of moles of a given element deposited.

Number of moles of aluminium in 9 g of aluminium = mass / molar mass

Molar mass of aluminium = 27 g

Number of moles of aluminium = 9/27 = 1/3 moles

Charge on aluminium ion = +3

3 moles of electrons will discharge 1 mole of aluminium,

1 mole of electrons will discharge 1/3 moles of aluminium

Number of moles of electrons involved = 1 mole of electrons

Charge on copper ion = +2

1 mole of electrons will discharge 1/2 moles of copper.

Mass of 1/2 moles of copper = number of moles × molar mass of copper

Molar mass of copper = 63.5 g

Mass of copper deposited = 1/2 × 63.5 = 31.75 g

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