What are the chemical reactions involved in CO2 emission?

Answers

Answer 1
In co2 there’s combustion because it comes from burning fossil fuels

Related Questions

10 moles of potassium hydroxide in 5.16 L of solution

Answers

Answer:

The molarity is 8.52M

Explanation:

molality = moles of solute/kg of solvent = 5.2mol/kg

moles of solute = 5.2mole

mass of solute = moles of solute × MW = 5.2 × 56.106 = 291.8g

mass of solvent = 1kg = 1000g

Mass of solution = mass of solute + mass of solvent = 291.8g + 1000g = 1291.8g

Density of KOH = 2120g/L

Volume of solution = mass/density = 1291.8/2120 = 0.61L

Molarity = number of moles of solute/volume of solution = 5.2/0.61 = 8.52M

The concentration in the solution is 1.94 mol/L

From the question,

We are to determine the concentration of 10 moles of potassium hydroxide in 5.16 L of solution.

From the formula

Number of moles = Concentration × Volume

Then, we can write that

[tex]Concentration = \frac{Number\ of\ moles}{Volume}[/tex]

From the question,

Number of moles of potassium hydroxide (KOH) = 10 moles

Volume of solution = 5.16 L

∴ Concentration of the solution = [tex]\frac{10}{5.16}[/tex]

Concentration of the solution = 1.94 mol/L

Hence, the concentration in the solution is 1.94 mol/L

Learn more here: https://brainly.com/question/19196652

Here is the complete question:

Calculate the concentration in each of the following solutions:

1. 10 moles of potassium hydroxide in 5.16 L of solution

If 190dm of hydrogen gas collected at 20°c and 760mmHg .Calculate it's volume at stp (standard pressure=760mmHg

Answers

Answer:

177.1 L

Explanation:

The excersise can be solved, by the Ideal Gases Law.

P . V = n . R . T

In first step we need to determine the moles of gas:

We convert T° from, C° to K → 20°C + 273 = 293K

We convert P from mmHg to atm → 760 mmHg = 1atm

1Dm³ = 1L → 190L

We replace: 190 L . 1 atm = n . 0.082 . 293K

(190L.atm) / 0.082 . 293K = 7.91 moles.

We replace equation at STP conditions (1 atm and 273K)

V = (n . R .T) / P

V = (7.91 mol . 0.082 . 273K) / 1atm = 177.1 L

We can also make a rule of three:

At STP conditions 1 mol of gas occupies 22.4L

Then, 7.91 moles will be contained at (7.91 . 22.4) /1 = 177.1L

What is the speed of a bird that flies 25 meters in 25 minutes?

Answers

Answer:

1mpm(1 meters per minute) Explanation: Speed:Distance/time 25/25=1 plz mark as brainliest

Answer:

1mpm(1 meters per minute)

Which is NOT an application of chemistry to life? *

a. Fertilizers used by farmers

b. Soaps used to clean

c. Medicine used by doctors

d. Hammer used by construction worker​

Answers

I’m pretty sure it’s D

Ayúdenme por favor
Please help me

Answers

The answers are;
2H2+O2===>2H2O
N2+3H2==>2NH3
C3H8+5O2==>4H20+3CO2
CH4+2O2===>CO2+2H2O
2HBr +Fe==>FeBr2 +H2
I hope it helped

Which option correctly orders the elements by increasing reactivity?
Hint: Review your periodic table.


Na < Li < K
Na < Li < K, ,

K < Na < Li
K < Na < Li, ,

Li < Na < K
Li < Na < K, ,

Na < K < Li

Answers

Answer: Li < Na < K is the answer

Explanation:

What is defined as the plants and animals and the physical surroundings, including the sun, air, soil, and water?

Answers

Answer:

Ecosystem

Explanation:

The answer is ecosystem because the ecosystem includes the community such as living things and the enviornment of nonliving things such as the sun!

Answer:

ecosystem I'm pretty sure

PLEASE ANSWER QUICKLY

Which are characteristics of arthropods? Check all that apply.
radial symmetry
nervous system
asexual reproduction
segmented body
open circulatory system

Answers

Answer:  I say its Segmented body  and radial symmetry im not sure if it is right

Explanation:

Answer:

B. Nervous system

D. Segmented body

E. Open circulatory system

Explanation:

Hope this helps!

Have a nice dayy! :)

HELP PLZ ILL GIVE BRAINLIEST

Answers

THE LINK THAT THAT PERSON GAVE YOU IS FAKE

What is the atomic number of an atom? Why is this number important?

Answers


The number of protons in an atom is called its atomic number. This number is very important because it is unique for atoms of a given element. All atoms of an element have the same number of protons, and every element has a different number of protons in its atoms

A solute can be obtained from a solution by...

Answers

Answer:

Evaporating the solvent

Explanation:

CAN SOMEONE PLEASE HELP ME ??!!!!!!
Our garbage disposal techniques have changed over time. Describe two ways that a “garbage dump” from the past would differ from a more modern sanitary landfill site

Answers

Answer:

The Resource Conservation and Recovery Act (RCRA; PL 94-580), the major federal law on waste disposal, was passed in 1976. Its primary goal was to "protect human health and the environment from the potential hazards of waste disposal." RCRA is also concerned with reducing the amount of waste generated, ensuring that wastes are managed properly, and conserving natural resources and energy. The RCRA regulates solid waste, hazardous waste, and underground storage tanks

Explanation:


live in a variety of places (with oxygen, without oxygen, extreme
hot, extreme cold). *

A bacteria
B virus
C fungus
D parasite


Answers

Answer:

A Bacteria

Explanation:

I need help!

And please give me an ACTUAL answer and not random spam words please!

Thanks!

What is[OH-] of a solution
with a pH of 11.3?

Answer in M

Answers

Answer:

2 ×10^-3

Explanation:

pH + pOH = 14

pOH = 14-11.3 = 2.7

[OH-] = 10^-pOH = 10^-2.7 = 2×10^-3 M

Plants and animals both use the process of _____ to release stored energy.

Answers

Answer:

The sun.

Explanation:

Sun is the ultimate source of energy. All living things on the earth using the energy comes from the sunlight.

Plants using sunlight to fuel the process of photosynthesis. Photosynthesis is the process of transforming of water and carbon dioxide to oxygen and glucose. The amount of energy used to drive the photosynthesis process is stored in the glucose molecules.

Organism feed on plants and breaking down the glucose molecules to release the stored energy. The release energy is utilized by the cells present in the organisms.

Autotrophs also have the ability to make their own food, so they are also using the energy from the sun to make their food.

science:my chosen place is bonifacio global city
i choose this place because?

Answers

Answer:

Rewrite the following sentence in reported speech

The chair person said,"A hearty welcome to all present!"

What processes contribute water to surface water sources?(science)

Answers

Of the many processes involved in the water cycle, the most important are evaporation, transpiration, condensation, precipitation, and runoff. Although the total amount of water within the cycle remains essentially constant, its distribution among the various processes is continually changing.

For a solution, [H+] = 1 x 10-2M.
What is the pH?

Answers

Answer:

pH=2

Explanation:

-log(1 x 10-2)=2

21.82 L of 4.65 M HCl is added to 9.31 L of 8.55 M NaOH. What is the concentration of HCl in the resulting solution? **hint: make ICE table

A)1.90 M

B)0.952 M

C)10.3 M

D)0.702 M

E)0.644 M

Answers

Answer:

D

Explanation:

First you multiply 4.65 with 21.82 to get the mols of hcl, which is 101.463. Then you make an ice table. The ice table should look like this:

HCl       +  NaOH     =  12NaCl + H2O

101.463   6.022e23   1.989e30

As the ice table above shows, you will have 1.989e30 mols of nacl after the reaction. With that information, you can then divide it by 2.833333333333333e30 to get 0.702 M.

Your friend sits on a 25.0L exercise ball, squishing the ball so that it is only 17.5L. What is the pressure inside the ball if the outside air pressure is 100. kPa?

Use the Boyle's Law equation to determine the answer.

Answers

Answer:

b

Explanation: because i took the test and got a 100

A sample of an unknown liquid has a volume of 12.0 mL and a mass of 6 g. What is its density?

A. 2 g/cm3
B. 0.5 g/cm
C. 5.0 g/cm3
D. 0.2 g/cm3

Answers

[tex]\large \mathfrak{Solution : }[/tex]

volume = 12 ml = 0.012 litres = 0.012 cm³

mass = 6 g

And the relationship between mass, volume and density can be depicted by :

[tex] \boxed{density = \dfrac{mass}{volume} }[/tex]

[tex]density = \dfrac{6}{0.012} [/tex]

[tex]density = \dfrac{6000}{12} [/tex]

[tex]density = 500 \: \: g/cm {}^{3} [/tex]

therefore, density = 500 g/cm³


What is the percent composition (by mass) of MgBr2?

Answers

Answer:

13.2% Mg, 86.8% Br

Explanation:

Mg has a molar mass of 24.31g/mol.

Bromine has a molar mass of 79.90 g/mol.

There is one mole of Mg and two moles of Br in the compound:

79.90x2 + 24.31 = 184.11

So the total molar mass of MgBr2 is 184.11.

A percent tells us a part of a whole, so we will divide each part of the mass into the whole mass.

24.31g Mg / 184.11g MgBr2 = .132

159.8g Br / 184.11g MgBr2 = .868

Multiply these decimals by 100 to make them into a percent.

.132 x 100 = 13.2% Mg

.868 x 100 = 86.8% Br

ASAP EASYYYY!!!!!!!!
List three household products that should go to a secure landfill site instead of regular sanitary landfill.

Answers

Answer:

A 0.60 mol sample of PCl 3 (g) and a 0.70 mol sample of Cl 2 (g) are placed in a previously evacuated 1.0 L container, and the reaction represented

Explanation:

To begin, check that Reaction 1 and Forward are selected. In this reaction, hydrogen (H2) and oxygen (O2) react to form water (H2O). The reaction takes place inside a device called a calorimeter. Inside the calorimeter, a small chamber holds the reactants. The rest of the calorimeter is filled with water. Click Play (). What happens?

Answers

Answer:

The reaction occurs and all H2 and O2 unite to form H20

What is one way that the kidneys help maintain homeostasis in the body?
A They regulate the temperature of the body
B They regulate the distribution of energy in the body
C They regulate the amount of oxygen in the body
D They regulate the amount of water in the body

Answers

Answer:

they regulate the amount of water in the body.

Explanation:

The kidneys help maintain homeostasis by regulating the concentration and volume of body fluids. For example, the amount of H+ and HCO3 - secreted by the kidneys controls the body's pH.

5 Protons {+}
5 Electrons {-}
6 Neutrons {0}
What element is this ?

Answers

Answer:boron

Explanation:

I need help no links please

Answers

Answer:

A. We still feel gravity because of inertia, which occurs all around us. Gravity is not felt as much because although it feels small, gravity is the attraction that keeps objects on Earth.

B. This is due to a field and a law, which states that opposites attract and like repel.

Help plzzZZZZ I really need help with this

Answers

The link above is fake, they’re tricking you. But the caption would be something like this depending where you are In the learning point. The Caterpillar over time makes a cocoon for itself using its spit and over time they start to transform into a butterfly in their cocoon and when they’re ready, they eat their way through the cocoon. Hope it helps

A sample of oxygen gas occupies a volume of 229.5 mL at 762.7 torr pressure. What volume in mL will it occupy at 704.5 torr pressure?

Answers

Answer:

248.4 mL

Explanation:

In order to answer this problem we can use Boyle's law, which states that at a constant composition:

P₁V₁ = P₂V₂

Where in this case:

P₁ = 762.7 torrV₁ = 229.5 mLP₂ = 704.5 torrV₂ = ?

We input the data:

762.7 torr * 229.5 mL = 704.5 torr * V₂

And solve for V₂:

V₂ = 248.4 mL

Find the final product for: Li + Br and show work.

Answers

Lithium is atomic number 3, so it has valency 1

While, Bromine is atomic number 35, and has valency 1

Lithium has an extra electron while Bromine need an electron, since they both need and have one electron, the form

LiBr (Lithium Bromide) where Li is +ve charged and Br is -ve charged

Happy to help :)

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