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
mr Goodwill [35]
3 years ago
12

The black "smoke" that flows out of deep ocean hydrothermal vents is made of insoluble metal sulfides suspended in seawater. Of

the following cations that are present in the water flowing up through these vents, which ones could contribute to the formation of the black smoke?
Pb2+
Mn2+
Mg2+
Cu2+
Na+
Li+
Zn2+
Fe2+
Ca2+
Chemistry
1 answer:
GREYUIT [131]3 years ago
8 0
The solubility rules usually go on to say that group IIA sulfides are soluble, but actually group IIA sulfides react with water to make H2S and the group IIA metal hydroxide. 
You might be interested in
Which of the following situations best shows deposition?
KATRIN_1 [288]

Answer:

chemistry, deposition occurs when molecules settle out of a solution. Deposition can be viewed as a reverse process to dissolution or particle re-entrainment. It is a phase change from the gaseous state to a solid, without passing through the liquid state, also called re-sublimation.

Explanation:

Examples include beaches, deltas, glacial moraines, sand dunes and salt domes. In severely cold temperatures frost will form on windows because the water vapor in the air comes into contact with a window and immediately forms ice without ever forming liquid water.

8 0
3 years ago
What is the purpose of the dts other auths and pre audits screen?
ICE Princess25 [194]

Answer:

It allows the traveler to justify questionable expense items.

hope that helped <3

6 0
2 years ago
Write three complete and balanced pairs of below mention electrochemical half reactions. For each pair of reactions, identify wh
kirza4 [7]

Answer: a) Cu\rightarrow Cu^{2+}+2e^-  : anode

b. 2H^++2e^-\rightarrow H_2 : cathode

c. O^{2-}\rightarrow \frac{1}{2}O_2+2e^-:  anode

Explanation:

Electrochemical cell is a device which converts chemical energy into electrical energy. It consist of two electrodes, anode and cathode.

Oxidation i.e. loss of electrons , which results in an increase in oxidation number occurs over anode.

Reduction i.e. gain of electrons, which results in decrease in oxidation number occurs over cathode.

a. Cu\rightarrow Cu^{2+}+2e^-  : oxidation :  anode

b. 2H^++2e^-\rightarrow H_2 : reduction : cathode

c. O^{2-}\rightarrow \frac{1}{2}O_2+2e^-: oxidation : anode

6 0
3 years ago
If the temperature outside is 75oF and the dew point is 75oF what is the humidity?
Serjik [45]

Answer:

in this file you will find it https://xlbrands.com/wp-content/uploads/2014/06/DEW-POINT-CALCULATION-CHARTenglish.pdf

Explanation:

8 0
2 years ago
I smell onions.
goldenfox [79]

Answer:

Observation

-I smell onions

-My dog weighs 45 pounds

-It is 85 degrees outside today

Predictions

-My dog will bark at the vacuum cleaner

although he has never seen it before

-My mother is going to cook spaghetti for

supper next Tuesday

-It will be a long, hot summer

Explanation:

5 0
3 years ago
Read 2 more answers
Other questions:
  • N2O5(g) → NO3(g) + NO2(g)
    9·1 answer
  • Which statement compares the masses of two subatomic particles
    11·1 answer
  • Which is the best analogy of a wave?
    5·2 answers
  • For heat transfer purposes, a standing man can be modeled as a 30-cm-diameter, 175-cm-long vertical cylinder with both the top a
    13·1 answer
  • In which chemical equation is the number of atoms in the reactants the same as the number of atoms in the products? A.Zn + 2HCl
    10·1 answer
  • How are the elements organized on the periodic table
    12·2 answers
  • Aqueous calcium chloride reacts with aqueous potassium carbonate in a double-displacement reaction. Write a balanced equation to
    15·1 answer
  • A hot metal plate at 150°C has been placed in air at room temperature. Which event would most likely take place over the next fe
    6·1 answer
  • Design a controlled experiment to test your hypothesis. A controlled experiment is one that only tests one variable. All other v
    9·1 answer
  • This is my question in imageIf 16.0 grams of aluminum oxide were actually produced, what is the percent yield of the reaction be
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!