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
Nata [24]
3 years ago
7

What is a chemical reaction?

Chemistry
2 answers:
Mila [183]3 years ago
8 0

Answer:

A chemical reaction is defined as per encyclopedia Britannia as a "a process in which one or more substances, are converted to one or more different substances, the products."

So A is correct, B is correct, C is correct.

So that means we choose D as they're all correct.

Mkey [24]3 years ago
5 0

Answer:

D.

Explanation:

this is because in a chemical reaction all 3 of those work.

You might be interested in
A 2.4L balloon filled with helium at room temperature 25oC is put into liquid nitrogen
Stels [109]

Answer:

V₂ = 0.62 L

Explanation:

Given data:

Initial volume = 2.4 L

Initial temperature = 25°C

Final temperature = -196°C

Final volume = ?

Solution:

Initial temperature = 25°C (25+273 = 298 K)

Final temperature = -196°C ( -196+273 = 77 K)

The given problem will be solve through the Charles Law.

According to this law, The volume of given amount of a gas is directly proportional to its temperature at constant number of moles and pressure.

Mathematical expression:

V₁/T₁ = V₂/T₂

V₁ = Initial volume

T₁ = Initial temperature

V₂ = Final volume  

T₂ = Final temperature

Now we will put the values in formula.

V₁/T₁ = V₂/T₂

V₂ = V₁T₂/T₁  

V₂ = 2.4 L × 77 K / 298 k

V₂ = 184.8 L.K / 298 K

V₂ = 0.62 L

5 0
3 years ago
PLS HELP ASAP!! Why is titanium known as a strategic metal??
Rom4ik [11]

__________________________________________________

Titanium is known as a strategic metal because it is one of the most abundant items on Earth! Also, it is used to build structures, such as space crafts, aircrafts, etc.

__________________________________________________

Hope this helps!

7 0
3 years ago
What needed to be present in marine mud to form fossil fuels?
UkoKoshka [18]
When organisms and plants died and sank to the bottom of swamps and oceans, brown soil-like materials called peat are formed. Over millions of years, the peat became covered with sand, clay and other minerals and the peat is converted into layers of sedimentary rocks. After a long time, different type of fossil fuels are formed.
8 0
3 years ago
What is the maximum amount in moles of P2O5 that can theoretically be made from 235 g of P4 and excess oxygen?
Lady_Fox [76]
The correct answer would be 3.8mol
5 0
3 years ago
How much heat is required to produce 2 moles of C2H2?
Kruka [31]

Answer: To calculate the enthalpy of combustion of acetylene, C2H2 , all you have to do is ... More specifically, you need to subtract from the sum of enthalpies of ... chemical reaction has 2 moles of C2H2 reacting to produce 2 moles of ... since the heat of combustion is expressed as energy per mole

5 0
3 years ago
Other questions:
  • You have 100 grams of potassium fluoride (KF) .
    11·1 answer
  • You compare two layers to a because the crust and upper mantle are solid
    13·1 answer
  • Be sure to answer all parts. Give the name and the formula of the compound formed from the following elements:
    5·1 answer
  • Two factors that determine whether a reaction will occur spontaneously
    10·1 answer
  • Which chemical equation is balanced?
    6·1 answer
  • Dihydrogen sulfide reacts with oxygen gas to form sulfur dioxide and water. How many moles of oxygen gas will react when 0.6469
    15·1 answer
  • How do sound waves travel? PLEASE HELP IF YOU WANT BRAINLEIST AND ME TO LIKE URE COMMENT!!
    14·1 answer
  • UNA ALEACIÓN DE DOS METALES A Y B TIENE UNA DENSIDAD RELATIVA DE 5 LAS DENSIDADES RELATIVAS DE A Y B RESPECTIVAMENTE SON 4 Y 10
    5·2 answers
  • What type of reaction is the following:
    9·2 answers
  • C= 51.89% H= 9.82% Br=38.29%
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!