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
Nitella [24]
3 years ago
10

Half-reactions can be written to represent all

Chemistry
2 answers:
kobusy [5.1K]3 years ago
5 0
Answer=4

<span>oxidation and reduction reactions
</span>
Likurg_2 [28]3 years ago
4 0

Answer: Option (4) is the correct answer.

Explanation:

Half reactions are the reactions that represent oxidation and reduction reactions through separate steps.

For example, 2Na + Br_{2} \rightarrow 2Na^{+} + 2Br^{-} the oxidation and reduction half-reaction will be as follows.

Oxidation half-reaction: 2Na \rightarrow Na^{+} + 2e^{-}

Reduction half-reaction: Br_{2} + 2e^{-} \rightarrow 2Br^{-}

Thus, we can conclude that half-reactions can be written to represent all oxidation and reduction reactions.

You might be interested in
a gas has a volume of 2.00 at 323k and 3.00 ATM What would be the new volume if the temperature is changed to 273 K in the press
Ber [7]

Answer:

V_2 = 5.07L

Explanation:

\frac{P_1 V_1}{T_1} = \frac{P_2 V_2}{T_2}\\V_2 = \frac{P_1 V_1 T_2}{T_1 P_2} = \frac{3.00atm \cdot 2.00L \cdot 273K}{323K \cdot 1.00atm} = 5.07L

6 0
2 years ago
Why do elements in the same group have similar physical and chemical properties
Inessa [10]

Answer:

Each element within a group has similar physical or chemical properties because of its atom's outermost electron shell (most chemical properties are dominated by the orbital location of the outermost electron).

Explanation:

8 0
2 years ago
The steps in every scientific investigation must_______________________.
Marizza181 [45]

Answer:

B. begin with a hypothesis

Explanation:

6 0
3 years ago
What is the mass of 1.72 moles of sodium nitrate? Use the periodic table and the polyatomic ion resource. A. 85.0 g B. 91.2 g C.
Mrac [35]
The answer is C. 146g because you add all of the masses of the individual elements and then mulyiply by 1.72 to get your answer.
7 0
3 years ago
Read 2 more answers
Extend your thinking: The slow decay of radioactive materials can be used to find the age of rocks, fossils, and archaeological
lisov135 [29]

The age in years of the Egyptian papyrus, the Aboriginal charcoal, the Mayan headdress, and the Neanderthal skull are 4000 years, 13106.5years , 2040 years, and 30353 years respectively.

<h3>What is the half-life of a radioactive material?</h3>

The half-life of a radioactive material is the time taken for half the atoms present in the material to decay or disintegrate.

The half-life, t_\frac{1}{2}, the age, t, and amount remaining, A_{r}, of a radioactive material are related by the formula below:

  • t = \frac{t_\frac{1}{2}*A_{r}}{-ln2}

Half-life of carbon-14 = 6000 years

For the Egyptian papyrus with 63% of its original carbon-14 atoms:t = \frac{6000*0.63}{-0.63} = 4000\:years

For the Aboriginal charcoal with 22% of its original carbon-14 atoms:

t = \frac{6000*0.22}{-0.63} = 13106.5\:years

For the Mayan headdress with 79% of its original carbon-14 atoms:

t = \frac{6000*0.79}{-0.63} = 2040\:years

Neanderthal skull with 3% of its original carbon-14 atoms:

t = \frac{6000*0.03}{-0.63} = 30353\:years

Therefore, the age in years of the Egyptian papyrus, the Aboriginal charcoal, the Mayan headdress, and the Neanderthal skull are 4000 years, 13106.5years , 2040 years, and 30353 years respectively.

Learn more about half-life at: brainly.com/question/26689704

#SPJ1

6 0
2 years ago
Other questions:
  • An experimental procedure requires 10 ml of acid to be dissolved into a beaker of water. An additional 5 ml of acid is added to
    7·2 answers
  • How much of the excess reactant remains after the reaction?
    13·2 answers
  • An experiment produced 0.10 g CO2, with a volume of 0.056 L at STP. If the accepted density of CO2 at STP is 1.96 g/L, what is t
    7·2 answers
  • PLEASE HELP IM SO CONFUSED
    6·2 answers
  • The jovian planets contain large abundances of hydrogen and helium because
    12·1 answer
  • Based on physical properties, which of these substances is an ionic compound? Explain your reasoning.
    6·1 answer
  • The state of matter in which a material has definite shape and definite<br> volume is the
    14·1 answer
  • It takes 120 mL of 0.15 M of carbonic acid (H2CO3) to neutralize 300 mL of sodium hydroxide (NaOH) for the following balanced ch
    10·1 answer
  • "Crude oil dustillation"
    6·1 answer
  • What do you think is the coldest temperature something can get to? What limits how cold something can get?
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!