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
vredina [299]
2 years ago
14

What is a coefficient? What is a subscript?

Chemistry
2 answers:
Katarina [22]2 years ago
8 0

Answer:

The coefficient tells you how many molecules of that substance there is. The subscript tells you what the substance it. It tells you the the amount of each element there are in the molecule. Changing it would change the substance itself.

Ierofanga [76]2 years ago
8 0

Answer:

The coefficient tells you how many molecules of that substance there is. The subscript tells you what the substance it. It tells you the the amount of each element there are in the molecule. Changing it would change the substance itself

Explanation:

You might be interested in
Three cards with holes are arranged in a straight line. A light is shined through the first card’s hole and travels through all
igomit [66]
C) that light travels in a straight line.
8 0
4 years ago
Read 2 more answers
Match each word with the correct definition. 1. to have an effect on someone or something technology 2. practical application of
Nastasia [14]

Answer:

2.

Explanation:

This  should  be right hopefully it is!

3 0
3 years ago
→
marin [14]

Answer:

[A]²

Explanation:

Since the formation is independent of D, D is 0 order.

Since a quadruples when it is doubled it can be written as

2A^X= 4

To find the unknown power we can assume A= 1 to make the math simple. So When a = 2 (Because you doubled it) raised to X power it will equal 4

so the unknown power is 2

Making the rate law

[a]²[b]⁰

or simply just

[A]²

8 0
3 years ago
The frequency factors for these two reactions are very close to each other in value. Assuming that they are the same, compute th
MrRissso [65]

The question is incomplete, complete question is :

The frequency factors for these two reactions are very close to each other in value. Assuming that they are the same, compute the ratio of the reaction rate constants for these two reactions at 25°C.

\frac{K_1}{K_2}=?

Activation energy of the reaction 1 ,Ea_1 = 14.0 kJ/mol

Activation energy of the reaction 2,Ea_1  = 11.9 kJ/mol

Answer:

0.4284 is the ratio of the rate constants.

Explanation:

According to the Arrhenius equation,

K=A\times e^{\frac{-Ea}{RT}}

The expression used with catalyst and without catalyst is,

\frac{K_2}{K_1}=\frac{A\times e^{\frac{-Ea_2}{RT}}}{A\times e^{\frac{-Ea_1}{RT}}}

\frac{K_2}{K_1}=e^{\frac{Ea_1-Ea_2}{RT}}

where,

K_2 = rate constant reaction -1

K_1 = rate constant reaction -2

Activation energy of the reaction 1 ,Ea_1 = 14.0 kJ/mol = 14,000 J

Activation energy of the reaction 2,Ea_1  = 11.9 kJ/mol = 11,900 J

R = gas constant = 8.314 J/ mol K

T = temperature = 25^oC=273+25=298 K

Now put all the given values in this formula, we get

\frac{K_1}{K_2}=e^{\frac{11,900- 14,000Jl}{8.314 J/mol K\times 298 K}}=2.3340

0.4284 is the ratio of the rate constants.

7 0
3 years ago
What is the colour of Bromine
nydimaria [60]
Reddish brown colour
5 0
3 years ago
Read 2 more answers
Other questions:
  • Neutral atoms of neon (atomic number 10) have the same number of electrons as each of the following except:
    13·2 answers
  • Use complete sentences to differentiate between acids and bases on the basis of taste. Give an example of each type.
    11·2 answers
  • Rubbing alcohol evaporates from your hand quickly, leaving a cooling effect on your skin. Because evaporation is an example of a
    12·1 answer
  • How do i <br> Round the value 44.981 g to three significant figures.
    10·1 answer
  • A sample of water and alcohol are mixed. What method should be used to separate them? -Screening -Filtering -Fractional distilla
    12·2 answers
  • How can human behaviors affect our natural resources?
    7·1 answer
  • If you start with 10.0 grams of lithium hydroxide how many grams of lithium bromide will be produced
    7·1 answer
  • What new information can you add to your definition of chemical change
    6·1 answer
  • What is the Molecular formula of a compound containing 63.53% Hydrogen, 8.24% Nitrogen, 28.23% Oxygen, and has a molecular mass
    6·1 answer
  • If I have a 78c and I fail a test that’s worth 15% of my grade what would it drop to ?
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!