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
o-na [289]
3 years ago
9

Need help ASAP!!!!

Chemistry
2 answers:
Advocard [28]3 years ago
8 0

Answer:

D.

Explanation:

Decompostion of stone due to acid rain

n200080 [17]3 years ago
5 0

Answer:

D

Explanation: the rest are either traits or physical changes

D is a chemical reaction

You might be interested in
Which of the following increases as you move up a column of the periodic table?
luda_lava [24]

Answer:

electronegativity increases

6 0
3 years ago
Describe how you might determine the m/z and relative abundance of the ions contributing to the peak at 21.876 min
aliya0001 [1]

The m/z and relative abundance of the ions contributed to the peak at 21.876 min. The relative abundance will be 21.876%.

<h3>What is relative abundance?</h3>
  • The proportion of atoms with a particular atomic mass present in an element sample taken from a naturally occurring sample is known as the relative abundance of an isotope.
  • When the relative abundances of an element's isotopes are multiplied by their atomic masses and the results are added up, the result is the element's average atomic mass, which is a weighted average.
  • Chemists often divide the number of atoms in a particular isotope by the sum of the atoms in all the isotopes of that element, then multiply the result by 100 to determine the percent abundance of each isotope in a sample of that element.

To learn more about relative abundance with the given link

brainly.com/question/1594226

#SPJ4

8 0
2 years ago
For the following electrochemical reaction: Al3+(aq) + 3e -&gt; Al(s) Eº = -1.66 V E° = 2.87 F2(g) + 2e -&gt; 2F (aq) Calculate
makvit [3.9K]

<u>Answer:</u> The standard electrode potential of the cell is 4.53 V.

<u>Explanation:</u>

We are given:

E^o_{(F_2/F^-)}=2.87V\\E^o_{(Al^{3+}/Al)}=-1.66V

The substance having highest positive E^o potential will always get reduced and will undergo reduction reaction. Here, fluorine will undergo reduction reaction will get reduced.

Aluminium will undergo oxidation reaction and will get oxidized.

Substance getting oxidized always act as anode and the one getting reduced always act as cathode.

To calculate the E^o_{cell} of the reaction, we use the equation:

E^o_{cell}=E^o_{cathode}-E^o_{anode}

E^o_{cell}=2.87-(-1.66)=4.53V

Hence, the standard electrode potential of the cell is 4.53 V.

6 0
3 years ago
What needs to be considered in balancing redox reactions?
Degger [83]
Number D both H and OH ions
8 0
3 years ago
Name 2 separate technique in separating iodine crystal and iron filings​
KonstantinChe [14]

One is through sublimation, where the mixture is heated and iodine gets converted into gaseous form, leaving behind the iron fillings.

The other is to get a magnet near the mixture and all the iron fillings get attracted to it while iodine will be left over

5 0
3 years ago
Other questions:
  • !Chemistry help!<br> How many moles are in a 1500 mL solution with a 1.2 M?
    10·2 answers
  • Which book has kinetic energy
    9·1 answer
  • When an equation is used to calculate the amount of product that will form during a reaction, the value obtained is called the _
    9·2 answers
  • What are some signs that a chemical change takes place when a firework explodes? Matter is destroyed Light is produced Heat is p
    14·1 answer
  • You are given a 1.50 g mixture of sodium nitrate and sodium chloride. you dissolve this mixture into 100. ml of water and then a
    14·1 answer
  • Why doesn't sodium bromide conduct electricity when solid?
    10·2 answers
  • Which is a physical property of matter?
    8·1 answer
  • How can you experimentally determine the solubility of a solute in water at a certain temperature?
    6·1 answer
  • Ammonia and oxygen react to form nitrogen and water, like this:
    14·1 answer
  • What would the products of a double-replacement reaction between KBr and CaO be? (Remember: In double-replacement reactions, the
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!