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
Ad libitum [116K]
3 years ago
8

Investigations allow for the control of variables.

Chemistry
1 answer:
almond37 [142]3 years ago
4 0
Factor or condition in an experiment that changes as a result of the independent variable. constant: factors or conditions in an experiment that are kept the same in ao Trials of the experiment. Control: a set up without the variable being tested.
You might be interested in
The following reaction was carried out in a 3.25 L reaction vessel at 1100 K:
kipiarov [429]

Answer : The value of reaction quotient Q is, 0.498

Explanation:

Reaction quotient (Q) : It is defined as the measurement of the relative amounts of products and reactants present during a reaction at a particular time.

The given balanced chemical reaction is,

C(s)+H_2O(g)\rightarrow CO(g)+H_2(g)

The expression for reaction quotient will be :

Q=\frac{[CO][H_2]}{[H_2O]}

In this expression, only gaseous or aqueous states are includes and pure liquid or solid states are omitted.

Now we have to calculate the concentration of H_2O,CO\text{ and }H_2

\text{Concentration of }H_2O=\frac{\text{Moles of }H_2O}{\text{Volume of solution}}=\frac{13.3mol}{3.25L}=4.09M

and,

\text{Concentration of }CO=\frac{\text{Moles of }CO}{\text{Volume of solution}}=\frac{3.40mol}{3.25L}=1.05M

and,

\text{Concentration of }H_2=\frac{\text{Moles of }H_2}{\text{Volume of solution}}=\frac{6.30mol}{3.25L}=1.94M

Now put all the given values in the above expression, we get:

Q=\frac{(1.05)\times (1.94)}{(4.09)}=0.498

Thus, the value of reaction quotient Q is, 0.498

3 0
4 years ago
What are 4 energy transfer
Klio2033 [76]
What kind of energy transfer
5 0
3 years ago
2 unicellular no autotrophic It uses a flagellum. A. Kingdom animalia B. kingdom fungi B. kingdom plantae D. kingdom protista
Pachacha [2.7K]
I know the answer to the question
8 0
3 years ago
nguyên tử sắt có điện tích hạt nhân là 26+. trong nguyên tử, số hạt mang điện nhiều hơn số hạt không mang điện là 22. Hãy xác đị
dimaraw [331]

Answer:

I don't know yr language

8 0
3 years ago
WHAT ARE SOME POSSIBLE CONSEQUENCES IF A HUMAN BODY DOES NOT MAINTAIN<br> HOMEOSTASIS
BARSIC [14]

Answer: If homeostasis is disrupted, it must be controlled or a disease/disorder may result.

Explanation: What happens if there's disruption? Your body systems work together to maintain balance. If that balance is shifted or disrupted and homeostasis is not maintained, the results may not allow normal functioning of the organism.

7 0
3 years ago
Read 2 more answers
Other questions:
  • What is the atomic mass of gold rounded to the nearest whole number
    10·2 answers
  • How do protons neutrons and electrons affect the overall charge of an atom
    12·1 answer
  • Water contained in a reservoir is controlled by a dam. The energy of the trapped water is
    6·1 answer
  • What is the speed of a golf ball than most 35 m in five seconds
    10·1 answer
  • Give two reasons why a 100% yield is not obtained in actual chemical manufacturing process.
    13·1 answer
  • A mixture of gases at a total pressure of 95 kPa contains nitrogen, carbon dioxide and oxygen. The partial pressure of carbon di
    5·2 answers
  • When a negatively charged beta particle is emitted by a radioactive nucleus which change happens in the nucleus?
    6·1 answer
  • Ali says the climate of a town is rainy because it is raining outside today. Is she correct? In one or two sentences, explain wh
    8·1 answer
  • Whats is tge electron configuration of Ag2+ please answer asap..
    11·1 answer
  • Which chemicals are reactants?
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!