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
Evgesh-ka [11]
3 years ago
15

Pls help nowwJust want to see who's the smartest herepromise to tag u as brainliest​

Chemistry
1 answer:
sveta [45]3 years ago
4 0

▪▪▪▪▪▪▪▪▪▪▪▪▪  {\huge\mathfrak{Answer}}▪▪▪▪▪▪▪▪▪▪▪▪▪▪

1. The equation representing the equation is ~

\mathrm{Na + Cl\rightarrow NaCl}

The given reaction is a <u>redox reaction</u> because there's a <u>transfer of electron</u> from <u>Sodium</u> (Na) to <u>chlorine</u> (Cl)

where sodium is <u>oxidized</u> (due to loss of electron) and chlorine get <u>reduced</u> (due to gain of electron).

2. <u>Sodium</u> is a <u>highly reactive</u> element which belongs to the 1st group of periodic table, hence it can catch fire if it is kept free in atmosphere. so in order to prevent that it is stored in <u>kerosene</u> oil, which doesn't let Sodium come in contact with air .

You might be interested in
Which properties are characteristic of group 2 elements at stp
Sindrei [870]

At <span>standard temperature and pressure, these elements have very similar properties; they are all shiny, silvery-white, semi-reactive metals that have industrial and biological applications. The Alkaline Earth Metals are elements of group 2 of the periodic table, which includes beryllium, magnesium, calcium, strontium, barium, and radium. Moreover, group 2 elements are   nonmetallic substances that are insoluble in water and heat resistant in nature.</span>

7 0
4 years ago
Read 2 more answers
HELPPP. What is the molarity (molar concentration) of a 500.0mL that contains 5.60g of KOH? Please show your work, with units, a
-Dominant- [34]

Answer:

.2 M

Explanation:

grams/molar mass=ans./volume(L)=molarity

5.6/56=ans./.500=.2 M

- Hope that helps! Please let me know if you need further explanation.

7 0
4 years ago
If pOH of the compound equals to 2, it shows that compound is *
tester [92]
Hey! So a strong acid would have a pH of about 0-3. So if it equals 2 it must be a strong acid.
8 0
3 years ago
Calcium carbonates are incorporated into the shells of microscopic marine plants and animals and then participate into the ocean
Anna007 [38]

The answer is: D. Biological precipitation.

Biological precipitation is the deposition of minerals from solution by the agency of organisms .

Deposition is the geological process in which sediments, soil and rocks are added to a landform or land mass.

Ocean sediments originate from numerous sources:

1) biological activity (biogenous).

2) weathering and erosion of the continents (terrigenous/lithogenous).

3) volcanic eruptions (volcanogenous).

4) chemical processes (hydrogenous).

Calcium carbonate (CaCO₃) is made of calcium, carbon and oxygen atoms.

7 0
4 years ago
Ammonia has been studied as an alternative "clean" fuel for internal combustion engines, since its reaction with oxygen produces
nlexa [21]

Answer:

The pressure equilibrium constant for the combustion of ammonia is 0.132

Explanation:

the balanced chemical reaction of the combustion of ammonia is as follows:

                                4NH3 + 3O2     =    2N2 +   6H2O

initially we have        4.8        1.9               0         0

in equilibrium            3.54      0.955        0.63    1.89

therefore the value of the equilibrium constant in terms of pressures is equal to:

Keq = ((PN2)^2 * (PH2O)^6)/((PNH3)^4 * (PO2)^3) = ((0.63^2)*(1.89^6))/((3.54^4) * (0.955^3)) = 0.132

6 0
4 years ago
Other questions:
  • Which aqueous solution has the highest boiling point?
    12·1 answer
  • Assuming NORMAL conditions, select all of the following that would be found in lesser concentrations in the urine than in the gl
    12·1 answer
  • 3. With which temperature scale is temperature directly proportional to average kinetic energy?
    5·1 answer
  • A weather station record the wind is blowing from the Northeast at 12 kilometers/h statement explains why Northeast at 12 kilome
    9·1 answer
  • Suppose the half-life is 35.5 s for a first order reaction and the reactant concentration is 0.0700 M 28.6 s after the reaction
    8·1 answer
  • Describe the main difference between the Bohr model and the electron cloud model of the atom.
    8·2 answers
  • Los campers ________ por un parque cerca del camping. Question options: dan una caminata se duermen toman una ducha
    9·1 answer
  • Decide which model best represents the relationship between Earth and the sun and what causes day and night. Explain your choice
    5·1 answer
  • what conclusion can be drawn from the statement that the element has a high ionization energy and a small atomic size?
    5·1 answer
  • 3.)
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!