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
hodyreva [135]
3 years ago
5

Which is evidence that the reaction below is a redox reaction?

Chemistry
2 answers:
kvv77 [185]3 years ago
7 0

Answer:

The correct answer was A. The sodium atom is a pure element as a reactant and becomes part of a compound.

Explanation:

I took the test

Ksenya-84 [330]3 years ago
6 0

Answer:The correct answer is:

Two different elements take part in the reaction.

Explanation:

A redox reaction is generally defined as chemical reaction in which oxidation and reduction takes place simultaneously.It is a reaction between two species among which gain and loss of electrons takes place.

So, in the given reaction, sodium metal looses an electron to chlorine atom to form sodium chloride molecule.

Na\rightarrow Na^++e^- Oxidation

Cl+e^-\rightarrow Cl^- Reduction

You might be interested in
Akosua has observed that anytime she drinks sobolo, her stool appears dark green. On one occasion
Anna007 [38]

Answer:

i. Sobolo is a Ghanian drink that is produced from red hibiscus flower that has an average pH of 6.7

It contains cyanidin and anthocyanins, which is a red pigment that is red in an acidic medium and changes green when introduced in a basic medium that has a high pH

The pH at the rectum of the digestive system = 5 to 8 (Slightly basic)

Therefore, what made the stool of Akosua green is that the sobolo drink changes to green in basic solution

ii. The stool which appeared green because she took sobolo turn into bright red upon mixing with the acidic WC water because of the presence of anthocyanins in sobolo, it turns red in an acidic medium

iii. Sobolo which turns green, or blue in a basic medium and red in an acidic medium can be used as a litmus solution to test the pH of a given substance

Explanation:

Sobolo or soobolo in Ghana is a name for the Hibiscus tea or tisane, which is made from calyces of the hibiscus plant, and has a sour (tangy) taste and appears bright red in color

8 0
3 years ago
Why does the earth rotate
boyakko [2]

Answer:

A

Explanation:

Your answer would be A because Earth is formed from cold gases collapsing due to gravity. The Solar System was formed when a huge amount of dust and gas began to collapse under its own gravity, and as the cloud collapse it started to spin causing the material within the cloud to gather into a swirl and then formed into planets and as the planets are formed they kept this spinning motion.

4 0
2 years ago
When the potential difference across a lamp is 3.3V the current is 0.15 calculate the resistance of the lamp and give the unit
marissa [1.9K]

Answer:

22Ω

Explanation:

Given parameters:

Potential difference  = 3.3V

Current  = 0.15A

Unknown:

Resistance  = ?

Solution:

According to ohm's law, potential difference, current and resistance are related by the expression below;

             V = I R

where V is the voltage

           I is the current

          R is the resistance

          3.3 = 0.15 x R

             R = \frac{3.3}{0.15}   = 22Ω

6 0
2 years ago
The density of silver is 10.49 g/cm3. if a sample of pure silver has a volume of 12.993 cm3, what would the mass?
weqwewe [10]
Multiply 10.49 by 12.993. that should be it. 130 grams ish?
6 0
3 years ago
What is meant by conversion of energy
MissTica

the process of changing one form of energy into another

4 0
3 years ago
Other questions:
  • Iki indicator tests for the presence of which substance? benedict's reagent tests for the presence of which substance?
    9·1 answer
  • 2H2 + O2 → 2H2O
    10·1 answer
  • Use the Periodic Table.
    14·1 answer
  • Overfatness in babies is discouraged because it may:
    5·2 answers
  • A gas-filled balloon with a volume of 2.90 L at 1.20 atm and 20°C is allowed to rise to the stratosphere (about 30 km above the
    10·2 answers
  • If y'all need a quick response to any type of question i'd like to help
    5·1 answer
  • What is the madd in grams of 0.40 moles of sodium borohydride, NaBH4
    6·1 answer
  • Explain how the answer is 4 please
    10·1 answer
  • What mass of Ca(OH)2 is contained in 1500 mL of 0.0250 M Ca(OH)2 solution?
    10·1 answer
  • if 3.95 mol of an ideal gas has a pressure of 2.33 atm and a volume of 60.87 l, what is the temperature of the sample in degrees
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!