1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Colt1911 [192]
1 year ago
8

A

Chemistry
1 answer:
Valentin [98]1 year ago
5 0

Answer:

A.) combustion

Explanation:

Combustion reactions are a specific type of redox reaction which always have the same general structure: CₓHᵧ + O₂ ---> H₂O + CO₂ + heat/light

Decomposition reactions are reactions which involve a molecule breaking down into smaller compounds/elements. They have the general structure: AB ---> A + B

Double replacement reactions are reactions in which the cation of one compound is swapped with the cation of another compound. They have the general structure: AB + CD ---> AD + CB

You might be interested in
Which of the four cars had the least net force applied to it when it was launched down the ramp
castortr0y [4]

The least net force applied : Car 3(12 N)

<h3>Further explanation  </h3>

Newton's 2nd law explains that the acceleration produced by the resultant force on an object is proportional and in line with the resultant force and inversely proportional to the mass of the object  

∑F = m. a  

Car 1 ⇒m=0.5 kg, a=36 m/s²

\tt \sum F=0.5\times 36=18~N

Car 2⇒m=0.8 kg, a=50 m/s²

\tt \sum F=0.8\times 50=40~N

Car 3⇒m=0.6, a=20 m/s²

\tt \sum F=0.6\times 20=12~N

Car 4⇒m=1, a=19~m/s²

\tt \sum=1\times 19=19~N

5 0
3 years ago
List five ways you use chemistry at home or school ?
Nat2105 [25]
1. cooking
2. cleaning
3.you use chemistry in science class (a.k.a. science experiments)
4. at your job depending on were you work
5 0
3 years ago
What leads to the formation of an ionic bond with hg2^2+
miv72 [106K]
It is <span>the attraction of an SO42– ion </span>
3 0
3 years ago
A 1.04L sample of gas of 759 mm Hg pressure is expanded
Marta_Voda [28]

Answer:

P2 = 352 mm Hg (rounded to three significant figures)

Explanation:

PV = nRT

where P is the pressure,

V is the volume,

n is the moles of gas,

R is the gas constant,

and T is the temperature.

We must relate this equation to a sample of gas at two different volumes however. Looking at the equation, we can relate the change in volume by:

P1V1 = P2V2

where P1 is the initial pressure,

V1 is the initial volume,

P2 is the final pressure,

and V2 is the final volume.

Looking at this relationship, pressure and volume have an indirect relationship; when one goes up, the other goes down. In that case, we can use this equation to solve for the new pressure.

P1V1 = P2V2

(759 mm Hg)(1.04 L) = P2(2.24 L)

P2 = 352 mm Hg (rounded to three significant figures)

8 0
3 years ago
If 1000. mL of water freezes, which of the following is a reasonable approximation for the volume of the resulting ice?
Fudgin [204]

Answer:

If 1000. mL of water freezes, which of the following is a reasonable approximation for the volume of the resulting ice?

Group of answer choices

1000. mL

961 mL

1040 mL

Explanation:

Ice is fewer denser than water.

The reason is the volume occupied by the same mass of ice with water is more than the volume occupied by water. Ice has more empty space within it.

Due to this reason, ice floats on water.

When 1000ml of water freezes to ice then its volume is greater than water.

Among the given options the correct answer is 1040 mL .

7 0
3 years ago
Other questions:
  • If 3 g of element C combine with 8 g of element D to form compound CD, how many grams of D are needed to form compound CD2?
    7·1 answer
  • Which substance is the least likely to dissolve in water?
    15·2 answers
  • PLEASE HELP ME
    10·1 answer
  • Which trait is shown when scientists ignore their personal bias while assessing an idea?
    6·2 answers
  • Help me this 2 . I’m not good at this sorry
    14·1 answer
  • Do compounds with different molecular formulas have different chemical properties
    5·1 answer
  • Elements that do not have full outer electron shells will donate, share, or take from other atoms. Choose the items that have th
    9·1 answer
  • If we add 20g of salt to 150g of water, what is the concentration by mass of the solution?
    15·1 answer
  • Which of the following alkenes is expected to have the highest heat of hydrogenation?
    7·1 answer
  • What charges must the particles have to create the electric field shown?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!