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
butalik [34]
4 years ago
15

Why is it important to have a control group in an experimental investigation?​

Chemistry
2 answers:
Arte-miy333 [17]4 years ago
8 0

a control group provides a baseline for the experiment, shows how the independent variable influenced the experiment and influenced the outcome. a control group provides a comparison for the experiment

dangina [55]4 years ago
6 0

Answer:to see how it effects

Explanation:

You might be interested in
The electrolysis of molten NaCl is an industrial process. What does the electrolysis produce?
saveliy_v [14]

Answer:

it is D

Explanation:

NaOH and chlorine gas

Electrolysis of Aqueous NaCl Since water can be both oxidized and reduced, it competes with the dissolved Na+ and Cl– ions. Rather than producing sodium, hydrogen is produced. ... The net process is the electrolysis of an aqueous solution of NaCl into industrially useful products sodium hydroxide (NaOH) and chlorine gas.

3 0
3 years ago
If you were asked to run Spartan calculations on the C2H3O2-/H3O ion pair, the trend in the resulting data points would appear s
Taya2010 [7]

Answer:

a. True

Explanation:

The data curve for OCI-/H3O appears to be similar to C2H3O2-/H3O because protons have not dissociated with conjugate base. This conjugate base is strong and hold proton in solution while acids try to dissociate it.

4 0
3 years ago
QUESTION 7 Can you use alligation for any type of liquid? ​
NeTakaya

Answer:

Yes you can use alligation for a type of liquid. Explanation: Alligation is an old and practical method of solving arithmetic problems related to mixtures of ingredients.

5 0
3 years ago
A gas has a volume of 450.0 ml at standard pressure. If the temperature is held constant, what volume would the gas occupy if th
zimovet [89]
A. 1800L !:$:!:):&/&/?)3&2!3?372&2!3)3$3!3!3?3:$heguejeneve
6 0
3 years ago
if the reactant solution is used to write on a piece of paper and the paper is allowed to partially dry, what can be done to bri
marissa [1.9K]

Answer:

Expose the paper to the atmosphere or moisture

Explanation:

An interesting experiment that demonstrates the equilibrium of complexes is that of the invisible ink.

The invisible ink is pink colored [Co(H2O)6]Cl2 which is essentially colorless and pale when it is used to write on paper. This complex is almost colorless when dilute. Therefore, when it is used in writing, the writing can not be seen.

However, if the paper is left to stand or allowed to absorb moisture; the following equilibrium is set up:

[Co(H2O)6]Cl2 ⇄ [CoCl2(H2O)2] + 4H2O

The formation of blue [CoCl2(H2O)2] on standing or exposure to moisture enables the colored writing to be easily read.

3 0
3 years ago
Other questions:
  • there are several ways of producing electrical energy (coal,hydrpower,nuclear power,solar,wind,geothermal,etc.)but which way is
    6·1 answer
  • Give the number of significant figures: 369,132,000 sec<br> A. 0<br> B. 6<br> C. 9
    5·2 answers
  • Is freshwater drum a consumer
    9·1 answer
  • Calculate the pOH of a 0.410 M Ba(OH)2 solution.
    7·1 answer
  • In addition to observing wind speed, wind direction, temperature, air pressure, and humidity, meteorologists observe _______
    10·2 answers
  • If 4.00 moles of oxygen gas, 3.00 moles of hydrogen gas, and 1.00 mole of nitrogen gas are combined in a closed container at sta
    6·1 answer
  • If 4.168 kJ of heat is added to a calorimeter containing 75.40 g of water, the temperature of the water and the calorimeter incr
    8·1 answer
  • What is the force of gravity acting on an object? (3 points)
    13·1 answer
  • Can spectrum colors be mixed
    11·1 answer
  • Sodium chloride procedure​
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!