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
kupik [55]
3 years ago
5

Which of the reactions below are catalyzed? Check all that apply.

Chemistry
2 answers:
Verdich [7]3 years ago
7 0

Answer:

B. Salt, NaCl, is produced by the process of evaporation of seawater or brine. If the surface area of the water is increased, the same volume of water evaporates faster.

C. The Haber process combines hydrogen and nitrogen to make ammonia. The two gases are passed through a reactor under pressure and at high temperatures. If iron is added to the reactor, the yield of ammonia increases.

Explanation:

Evaporation of water is responsible for the production of sodium chloride also known as table salt. Sodium and chlorine are present in water. When more evaporation of water occurs, sodium and chlorine come close together forming sodium chloride. Haber process is responsible for the production of ammonia which is used as fertilizer. For speed up the process, catalyst is used such as iron in order to complete the reaction in less time. Iron binds hydrogen and nitrogen with each other.

Alexus [3.1K]3 years ago
3 0

Answer:a c d edj

Explanation:

You might be interested in
16) Which of the following elements is unique to nucleic acids when studying organic compounds?
FinnZ [79.3K]
The correct answer is: phosphorous
3 0
3 years ago
Read 2 more answers
Which are the product(s) of this chemical reaction? FeCl 3 + 3NH 4OH ->
Vinvika [58]
The answer is D

FeCl3 + 3 NH4OH → Fe(OH)3 + 3 NH4Cl
5 0
2 years ago
Help please
andrew11 [14]

Answer:

K2Cr2O7

Explanation:

Solubility refers to the amount of substance that dissolves in a given mass or volume of solvent. There are several units of solubility applicable in different areas.

Solubility is dependent on temperature. The solubility curve is a graphical representation of the dependence of solubility on temperature for different chemical species.

If we study the solubility curve closely, we will see that K2Cr2O7 has the highest solubility at 100°C. This means that if the trends continue, this substance will also have the highest solubility at 120°C.

6 0
2 years ago
Read 2 more answers
Iron has a mass of 7.87 g per cubic centimeter of volume, and the mass of an iron atom is 9.27 × 10-26 kg. If you simplify and t
Talja [164]
<span>(a) what is the average volume (in cubic meters) required for each iron atom
For this case, the density of Iron would be </span>7.87g/cm³
<span>
V = 9.27 x 10^-26 kg / </span>7.87g/cm<span>³ ( 1 kg / 1000 g)
</span>V = 1.18 x 10-23 cm³<span>

(b) what is the distance (in meters) between the centers of adjacent atoms?
We assume the atoms as cube, so we use the volume of the cube to calculate the distance of the atoms.

V = </span>1.18 x 10-23 cm<span>³ = s</span>³
s = 2.28 x 10^-8 cm
7 0
2 years ago
Read 2 more answers
In one to two sentences give one reason reactants might not equal visible products after a chemical reaction
Svetradugi [14.3K]

Answer:

If your asking why they are different because atoms are rearranged in a chemical reaction, there must be the same number of sodium atoms and chlorine atoms in both reactants and products for them to be the same.

4 0
3 years ago
Other questions:
  • What is a doodle bug (not insect) ASAP
    7·1 answer
  • Which action is not an accomplishment of the Apollo missions?
    13·1 answer
  • Which phenomena support only the particle theory of light? Check all that apply. reflection
    12·2 answers
  • When is balance achieved between the forward and reverse reactions?
    5·1 answer
  • A chemical reaction in which one element replaces another element in a compound can be categorized as a
    6·2 answers
  • The following chemical equation is not balanced: Fe2O3 + H2SO4 Fe2(SO4)3 + H2O When this chemical equation is correctly balanced
    12·2 answers
  • The smallest particle of an element that retains the chemical identity of that element is a/an
    8·1 answer
  • Which of these is NOT a mixture?
    7·1 answer
  • How many atoms of oxygen are in a molecule of glucose<br> (C6H12O6)
    15·2 answers
  • Trioxocarbonate iv acid​
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!