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
agasfer [191]
3 years ago
14

A scientific ________ must have a control, so that the variables that could affect the out come is reduced. A:experiment B:concl

usion. C:investigation. D:reasoning
Chemistry
1 answer:
Lostsunrise [7]3 years ago
4 0

Answer:

A.experiment

Explanation:

hope this helps

You might be interested in
How do distinctive rock layers support the theory of continental drift
Debora [2.8K]
The lithosphere (under the tectonic plates) is semifluid, allowing for the plates above to move over it, causing earthquakes, and essentially continental drift. 
8 0
3 years ago
Which of the following is an electrolyte?
Serggg [28]
Electrolytes are inorganic substances that dissociate into ions in water. Examples of electrolytes include salts [for example, sodium chloride (NaCl) and magnesium chloride (MgCl2)] and ions [for example, potassium (K+)].
8 0
3 years ago
Read 2 more answers
For each metal complex give the coordination number for the metal species. m(nh34cl2
tankabanditka [31]
The coordination number is 6. The outer Cl- ion isn't included, so you count 4 x NH3 and 2 x Cl- are within Co's coordination sphere.
8 0
3 years ago
galvanic cell is powered by the following redox reaction: (g) (aq) (l)(aq) (s) (aq) Answer the following questions about this ce
kotykmax [81]

Answer:

Explanation:

1. the 1/2 reaction that occurs at the cathode

3Cl2(g) +6e^- -------------> 6Cl^- (aq)

2 the 1/2 reaction that occurs at the anode

2MnO2(s) + 8OH^-(aq) ----------> 2MnO4^- (aq) + 4H2O(l) +6e^-      

2MnO2(s) + 8OH^-(aq) ----------> 2MnO4^- (aq) + 4H2O(l) +6e^-

E0 = -0.59v

3Cl2(g) +6e^- -------------> 6Cl^- (aq)                                                  

E0 = 1.39v

3Cl2 (g) + 2MnO2 (s) + 8OH^(−) (aq)---------> 6Cl^(−) (aq) + 2MnO4^(−) (aq) + 4H2O (l)  

E0cell = 0.80v

5 0
3 years ago
Nerves impulses _____.
rjkz [21]

Answer:

are electrical signals

Explanation:

Feel free to correct me, I'm just trying to help

4 0
3 years ago
Other questions:
  • One gram is approximately the same as half the mass of a new U.S.
    6·1 answer
  • A drop of gasoline has a mass of 22 mg and a density of 0.754 g/cm3. What is its volume in cubic centimeters?
    9·1 answer
  • Which of the following is true about the following chemical reaction at equilibrium? PICK ALL THAT APPLY.
    7·1 answer
  • Dalton’s atomic theory included which idea?
    14·1 answer
  • Is table salt a mixture ?<br><br><br> True <br><br> False
    12·1 answer
  • Contains nucleic acid has a protein coat derives its energy from a host cell
    5·1 answer
  • What happens if a white light encounters a substance or a gas?
    11·1 answer
  • Interpret the electron configuration
    14·1 answer
  • carbon-dating was performed on an artefact that was found to have 25% of the original carbon-14 remaining in it
    7·1 answer
  • NAD+ and FAD are called ____
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!