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
NemiM [27]
3 years ago
6

Question 3 of 11

Chemistry
1 answer:
daser333 [38]3 years ago
6 0

Answer:

c

Explanation:

b and d are out, the variables are changed. a would be a repetition, not a replication. c uses the same method and variables with a different control group

You might be interested in
According the the arrhenius theory, which species does an acid produce in an aqueous solution?
4vir4ik [10]
Note: Above question is incomplete: Complete question is read as 
<span>According the the arrhenius theory, which species does an acid produce in an aqueous solution?
</span>A) hydrogen ions B) hydroxyl ions C) Sodium ions D) Chloride ion
.....................................................................................................................
Correct answer for above question is A) Hydrogen ions

Reason:
According the Arrhenius theory of acid and base, acid generates hydrogen ions in aqueous medium, while bases generates hydroxyl ions in aqueous medium.  
Example of Acid:
HCl(aq)          →          H+(aq)    + Cl-(aq)

Example of Base:
NaOH(aq)           →          Na+(aq)       +     OH-(aq)


6 0
3 years ago
Which are characteristics of the speed of light? Check all that apply.
valkas [14]
- <span>The </span>speed of light<span> is the </span>speed<span> electromagnetic waves travel. The </span>speed of light<span> is 3.0 x 108 m/s in space. The </span>speed of light<span> is the same in all matter. The </span>speed<span> of higher frequency </span>light <span>slows down more than lower frequency </span>light<span> in matter.</span>
4 0
3 years ago
Read 2 more answers
HELP!!!! ASAP!!!!!!!!!!<br><br> HOW ARE REACTANTS DIFFERENT FROM THE PRODUCTS ?
raketka [301]
Reactants are what make up the product.
7 0
3 years ago
Read 2 more answers
Where y and x are concentrations of the peptide in the extract and raffinate, respectively in g/L. It is desired to extract at l
zubka84 [21]

Answer:

sadjf akasj fk a

sadkf

ldj

a d i

i d o n t             k n o w

Explanation:

6 0
3 years ago
How many neutrons are present in a nucleus whose atomic number is one and whose mass number is one?
nekit [7.7K]

Because the proton has a mass of 1 and a neutron has a mass of 1, we know that there is exactly one proton in the nucleus (because of the atomic number) which therefore tells us there are no neutrons as adding one would make the mass more than one.

8 0
3 years ago
Other questions:
  • How many moles of oxygen are in 5.6 moles of al(oh)3?
    7·1 answer
  • Need help quick! 10 points for correct answer :)
    5·2 answers
  • A patient needs to take 625 mg of ibuprofen twice daily. The pills in the bottle are each 250. mg. How many pills does the patie
    6·2 answers
  • 48. Explain how atoms (ions) are held together in an ionic bond. Give an example of an ionic
    14·2 answers
  • What do chemists think is the best measurement of concentration for describing the concentration of a solid solute dissolved in
    10·1 answer
  • The winter is caused by __________. Which phrase best completes the sentence? indirect sunlight striking Earth Earth's far dista
    10·2 answers
  • Which statement describes vascular plants?
    10·1 answer
  • HELP!!!!!! I will give you 15 points for this , please don’t guess
    13·1 answer
  • What percentage of a substance remains after 7 half-lives have passed?
    7·1 answer
  • Fluorine gas is placed in contact with calcium metal at high temperatures to produce calcium fluoride powder. What is the
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!