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
fomenos
3 years ago
9

Which ancient African Kingdom is located in western Africa? ​

Chemistry
1 answer:
NISA [10]3 years ago
3 0

Answer:

Ghana Empire is was a kingdom in western Africa.

You might be interested in
A main function of a plant's seed is to
Leni [432]
Create more of their species
6 0
2 years ago
Read 2 more answers
What is the charge on one ATOM of plasma?<br> •negative<br> •positive
Anuta_ua [19.1K]
I believe it is positive
4 0
3 years ago
In the lab, you looked at speed-time graphs to determine the acceleration of the cart for each of the three fan speeds
Bumek [7]

Answer:

What was the acceleration of the cart with Low fan speed?  ⇒ 18.0 cm/s2

What was the acceleration of the cart with Medium fan speed?  ⇒ 24.0 cm/s2

What was the acceleration of the cart with High fan speed? 32.0cm/s2

Explanation:

8 0
3 years ago
Read 2 more answers
based on the positions in the periodic table, which two elements would mostly readily combine to make a stable compound
Advocard [28]

Elements that there Electrons equal a multiple of 8 because then they become a noble gas.


4 0
3 years ago
Able 1 Cell Type Operating Cell Potential for Commercial Batteries, E (V) Lithium-iodine Zinc-mercury +2.80 +1.35 Table 2 Standa
IrinaK [193]

Answer:

During the initial cell operation, each reaction is thermodynamically favorable, but the larger operating potential of the lithium-iodine cell indicates that its cell reaction is more thermodynamically favorable.  ( B )

During the initial cell operation, the oxidation of iodine is  thermodynamically favorable but the oxidation of mercury is not. ( C )

Explanation:

<u>The major Differences between The Zinc mercury cell and Lithium-iodine cell are :</u>

During the initial cell operation, each reaction is thermodynamically favorable, but the larger operating potential of the lithium-iodine cell indicates that its cell reaction is more thermodynamically favorable.   and

During the initial cell operation, the oxidation of iodine is thermodynamically favorable but the oxidation of mercury is not.

Given the relationship below,

Δ G = -nFE

E = emf of cell ,  G = free energy.

This relationship shows that if E is positive the reaction will be thermodynamically favorable also if E is large it will increase the negativity of free energy  also From the question we can see that with the reduction of mercury the value of E is more positive and this shows that Mercury is thermodynamically unfavorable

8 0
2 years ago
Other questions:
  • The formation of tert-butanol is described by the following chemical equation:
    6·1 answer
  • You wash dishes for a chemistry laboratory to make extra money for laundry. You earn 12 dollars/hour, and each shift lasts 75 mi
    9·2 answers
  • To lift a load of 100 N a distance of 1 m an effort of 25 N must be applied over an inclined plane of length 4 m. What must be d
    7·2 answers
  • 5. What concentration of acid must be added to change the pH of 1 mM phosphate buffer from 7.4 to 7.3 (pKas of the phosphate buf
    13·1 answer
  • A sample of an unknown metal has a mass of 58.932g. it has been heated to 101.00 degrees C, then dropped quickly into 45.20 mL o
    11·1 answer
  • Determine the molecular formula of a compound having an empirical formula of CH and an experimental molar mass of 78 g/mol. Expl
    7·1 answer
  • What are the most common metric units used in science?
    12·1 answer
  • Which is the same length as a light-year?
    12·2 answers
  • 4. The reaction of silver nitrate and potassium bromide yields silver bromide and potassium nitrate. If
    15·1 answer
  • Write the balanced nuclear equation for the alpha decay of thorium-232.
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!