The combustion of fuel oil to heat a home is an example of a/an???????

Answers

Answer 1

Answer:

Is it multiple choice? you didnt have any choices

Explanation:

Answer 2

Answer:

exothermic reaction

Explanation:


Related Questions

one of many cells in the retina of the eye that responds to low light. VOCABULARY

Answers

Answer:

I hope this helps you!

Explanation:

The retina is the back part of the eye that contains the cells that respond to light. These specialized cells are called photoreceptors. ... The rods are most sensitive to light and dark changes, shape and movement and contain only one type of light-sensitive pigment. Rods are not good for color vision.

The retina is the back thing of the eye that has the cells that respond to the light. These specialized cells are known as photoreceptors.

Part B
DIRECTIONS: Identify the type of heat transfer depicted in each picture by arranging the
jumbled letters and answer the questions that follows.

Answers

Answer:

1. conduction

2. Convection

3. Radiation

how does gas create pressure?

a. the force of a collision between two gas molecules with the same amount of kinetic energy creates pressure

b. the force of a collision of a gas molecule against the walls of its container create pressure

c. the force of a collision between two gas molecules with different temperatures creates pressure

d. the force of a collision of a gas molecule against the air in a container creates pressure

Answers

B the force of a collision of a gas molecule against the walls of its container create pressure

A sodium nitrate solution was prepared in the lab to have a concentration of 0.467 M.  If 50. mL of a 6.00 M stock solution was used to prepare this sodium nitrate solution, what volume of water was added to the original 50. mL of stock solution? Provide the appropriate units (mL or L) to your response.

Answers

the treaty of versailles ended world war i, but some of the terms of the treaty contributed to the beginning of world war ii. which was one of the terms of the treaty? the answer would be "germany was forces to pay reparations to the allied countries.". i hope this .

Explanation:

At what temperature will 2.50 moles of ideal
gas produce a pressure of 25.0 atm in a 10.0 L
container

Answers

Answer: 1,218K

Explanation:

Classify the following statement as a prediction, observation, theory, 
or law. Please be sure to classify the statement exactly as it is 
written!
If he kicks the ball, then it will go into the goal.

Answers

Answer:

I believe that it is a prediction.

Explanation:

Because you can't kick the ball and say it will go into the goal. Of course if it is right in front of the goal and you kick it will go in but in both cases if you kick it too hard it will go in and then bounce off the net and roll back out of the goal. So in my opinion it is a prediction.

how do you start a hypothesis in science which includes scientific words and information which is on how much sugar can dissolve in water using the temperature of the solvent which is the water?

Answers

Answer: If ... Then... Because...

Explanation: if I water this plant twice a day then it will grow 3 feet because the more water it gets the bigger it grows

Which refers to solid ice that condenses and forms on surfaces like grass or windows?

dew
frost
hail
sleet

Answers

Frost is your answer

Frost refers to solid ice that condenses and forms on surfaces like grass or windows.

WHAT IS FROST?

Frost refers to a deposit of small white ice crystals formed on solid surfaces when the temperature falls below freezing temperature.

Frost forms when the temperature of the atmosphere is below freezing i.e. < 0°C.

Therefore, frost refers to solid ice that condenses and forms on surfaces like grass or windows.

Learn more about frost at: https://brainly.com/question/24843495


A gas occupies 4.21 Iiters at a pressure 1 074 atm. What will its volume be if the pressure is decreased to 0.46 atm?

Answers

Answer:

15.9 Liters

Explanation:

according to Boyle's law P1V1 = P2V2

so we just plug in the values the problem gives us and solve for V2

(1.74)(4.21)=(.46)(V2)

V2 = 15.9 Liters

*note - there is a typo in your question when you states P1 = 1 074 atm. I just assumed you meant 1.74, if this is a mistake just replace 1.74 with the real P1 and solve it as shown above

if you have any questions just comment them below

2A(g) + B(l) ⇌ 3C(aq) + D(s)

Answers

Answer:

B

[(0.75)^3(0.25)]÷[(0.50)^2(0.75)]

Explanation:

toppr dot com

London dispersion forces decrease with increasing number of electrons decreasing number of electrons

Answers

Answer:

Increasing number of electrons

Explanation:

London dispersion forces are intermolecular forces that occur due to momentary shifts in the electron cloud of atoms or molecules.

London dispersion forces are most commonly observed as the predominant kind of intermolecular forces in non-polar substances.

Generally, it is observed that the strength of these London dispersion forces tends to increase as the number of electrons in the substance increases.

What kind of reaction shows two reactants combining to form one new product?
What kind of reaction shows two reactants combining to form one new product?
A) a single-replacement reaction
B) a double-replacement reaction
C) a decomposition reaction
D) a synthesis reaction

Answers

D) a synthesis reaction

Plz answer fast , (it’s a picture

Answers

Answer:

Explanation:

1.4193.61

2.1.69205e7

3.1.57611e14

4.46270.5

Please help! This is for the 9.06 Acid Neutralization Lab! Due today!


Amount of added (mL) | Litmus color | Approximate pH

1 | |

2 | |

3 | |

4 | |

5 | |

6 | |

7 | |

8 | |

9 | |

10 | |

Answers

hi there bestie [i think its 3]

how could you get the crystals in a supersaturated solution back into the solution?

Answers

By adding then the crystals will work

WILL GIVE BRANLIEST!!! Methane, CH4 is a __ (polar, nonpolar) molecule. In a molecule of methane, the primary intermolecular forces are ___ (London dispersion forces, dipole dipole forces, hydrogen forces, hydrogen bonding)

Answers

Answer:

Nonpolar; London dispersion forces

Explanation:

Increasing the surface area between solute and solvent Select one: a. has no effect on the rate of dissolution. b. decreases the rate of dissolution. c. can increase, decrease, or have no effect on the rate of dissolution. d. increases the rate of dissolution.

Answers

The answer for this is: d

Increasing the surface area between solute and solvent, increases the rate of dissolution.

What is rate?

Rate of any process will gives idea about the speed of the completion of that happening process.

Dissolution is a process in which solute particles gets dissolve in the solvent medium. If we increases the surface area of any one medium of the solution like solute or solvent then the rate of dissolution increases, as it increases the space to get attracted to each other.

Hence, option (d) is correct.

To know more about dissolution, visit the below link:

https://brainly.com/question/1533795

3. Svante Arrhenius developed a definition of acids and bases
which stated...
A. acids produce OH+ ions and bases produce H ions
B. acids produce H+ ions and bases produce OH ions
STAT
C. acids and bases are the same
D. acids have a high pH and bases have a low pH


pls help

btw any links will be reported.

Answers

D acid and bases are the same

Na2O H2 --> 2Na H2O A student performed the above reaction in the lab, and obtained an actual yield of 3.9 grams of H2O. He calculated a theoretical value of 4.2 grams of H2O. Calculate the percent yield of the reaction.

Answers

Answer:

Percentage yield = 92.86%

Explanation:

We are given;

Actual yield = 3.9 grams

Theoretical yield = 4.2 grams

Formula for percent yield is;

% yield = (actual yield/theoretical yield) × 100%

Thus;

% yield = (3.9/4.2) × 100%

% yield = 92.86%

What is the new pressure of 150 mL of a gas that is compressed to 50 mL when the original pressure was 3.0 ATM and the temperature is held constant

Answers

Answer:

[tex]\boxed {\boxed {\sf P_2= 9 \ atm}}[/tex]

Explanation:

Since the temperature is held constant, we only need to focus on the volume and pressure. We will use Boyle's Law, which states the volume of a gas is inversely proportional to the pressure. The formula is:

[tex]P_1V_1=P_2V_2[/tex]

Originally, the gas had a volume of 150 milliliters and a pressure of 3.0 atmospheres. We can substitute these values into the left side of the equation.

[tex]3.0 \ atm * 150 \ mL = P_2V_2[/tex]

The original gas was compressed to a volume of 50 milliliters, but we don't know the volume.

[tex]3.0 \ atm *150 \ mL= P_2 * 50 \ mL[/tex]

Now, we need to solve for the new pressure (P₂). Multiply on the left side first.

[tex]450 \ atm*mL= P_2 * 50 \ mL[/tex]

Since we are solving for the pressure, we need to isolate the variable. It is being multiplied by 50 mL. The inverse of multiplication is division. Divide both sides by 50 mL.

[tex]\frac{450 \ atm*mL}{50 \ mL}= \frac{P_2 * 50 \ mL}{50 \ mL}[/tex]

[tex]\frac{450 \ atm*mL}{50 \ mL}= P_2[/tex]

The units of milliliters will cancel.

[tex]\frac{450 \ atm}{50 }= P_2[/tex]

[tex]9 \ atm =P_2[/tex]

The new pressure is 9 atmospheres.

Question 6

6.7 pts

A solution has a very high electrical conductivity, turns litmus paper red and has a pH of 2.0. This is most likely

a(n)

Base/Strong Electrolyte

Acid/Weak Electrolyte

Acid/Strong Electrolyte

Base/Weak Electrolyte

Next

« Previous

Answers

Answer:

Acid/String Electrolyte

Explanation:

Litmus paper turning red means it is an acidic solution. A pH of more than 7 is Base while pH of less than 7 is an acid. Since the pH is 2, less than 7, it s is an acid. Since it has a high electrical conductivity, it must be a strong Electrolyte.

What does the group number of an element tell you about the electrons?

Answers

Answer:

Explanation:

The group number of an element tells about the total  number of electrons present in the valence shell or orbit of an atom.

If a car speeds up from 80km/hr to 110km/hr to pass another vehicle in 1.5 min (0.025hrs), what is their acceleration?

Answers

Answer: uhhhh im pretty sure the answer is 69m/hr

Explanation:

In your OWN words, what is the difference between a solute, solvent and solution?

Answers

Answer:

could u all help me??

Who was Agamemnon trying to persuade to come fight with him again?

Patroclus

Achilles

Odysseus

Hector

Explanation:

How do some insects take advantage of the surface tension of water?

Answers

Some insects can walk on water due to the structure of their feet and their weight in combination with the surface tension of water. Water molecules attract each other, so they form a force to stay together call surface tension.


I hope this helped

pls help me guys please please​ only 1 question choose

Answers

Answer:

D.4 types of molecules is yr ans.

stay safe healthy and happy.

Does gold have high lustre?

Answers

Yes because of the bright color it gives off

copper oxide + hydrochloric acid →

Answers

Answer:

copper oxide + hydrochloric acid --> copper chloride + water

Explanation:

Thenks and mark me brainliest :))

Answer:

Copper oxide hydrochloric acid  ( CuCl2 + H2O)

Explanation:

CuO +  HCl  → CuCl2 + H2O

Which occurs within a high pressure system?

Answers

Answer:

A high pressure system has higher pressure at its center than the areas around it. Winds blow away from high pressure. Swirling in the opposite direction from a low pressure system, the winds of a high pressure system rotate clockwise north of the equator and counterclockwise south of the equator.

Answer:

Dense air is pushed downwards towards the surface. since the air is being pushed down the air above spreads and thats when "fair wheather" happens.

Explanation:

Hope that helped!

explain how soil can affect the composition of the solution that move through it

Answers

Answer: Soils are formed through the interaction of five major factors: time, climate, parent material, topography and relief, and organisms.

Soil structure affects plant growth in many, often surprising, ways. The most obvious effects are on root growth, which is strongly inhibited by hard soil, and which in turn influences the ability of the root system to extract adequate water and nutrients from the soil.

Explanation:

https://www.publish.csiro.au/sr/pdf/SR9910717

This is where I gather some info.  

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