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
photoshop1234 [79]
3 years ago
7

8. Which of the following compounds is an ionic compound? (metal)

Chemistry
2 answers:
fomenos3 years ago
6 0
The answer is b, because all of the other compounds are covelent
scZoUnD [109]3 years ago
3 0

Answer: b. BaF2

Explanation: Barium fluoride is an ionic compound. Since ionic compounds are composed of a metal which is Barium and a nonmetallic element which is Fluorine chemically combined together.

You might be interested in
A weather system moving through the American Midwest produced rain with an average pH of 5.02. By the time the system reached Ne
bulgar [2K]

Answer:

The rain falling in New England is 2.29 times more acidic than the one in the American Midwest.

Explanation:

The acidity of a solution depends on the concentration of H⁺ ions ([H⁺]). We can calculate this concentration from the pH using the following expression.

pH = -log ([H⁺])

American Midwest

pH = -log ([H⁺])

5.02 = -log ([H⁺])

[H⁺] = antilog (-5.02) = 9.55 × 10⁻⁶ M

New England

pH = -log ([H⁺])

4.66 = -log ([H⁺])

[H⁺] = antilog (-4.66) = 2.19 × 10⁻⁵ M

The ratio of concentrations is:

\frac{2.19 \times 10^{-5} M  }{9.55 \times 10^{-6} M} =2.29

The rain falling in New England is 2.29 times more acidic than the one in the American Midwest.

4 0
3 years ago
Cassady? you there ?
iren [92.7K]

Answer:

who da hell is cassady?

Explanation:

8 0
3 years ago
Read 2 more answers
How long, in seconds, would it take for the concentration of A to decrease from 0.860 M to 0.310 M?
kogti [31]

Answer:

2.038 seconds.

Explanation:

So, in the question above we are given the following parameters in order to solve this question. We are given a rate constant of 0.500 s^-, initial concentration= 0.860 M and final concentration= 0.310 M,the time,t =??.

Assuming that the equation for the first order of reaction is given below,that is;

A ---------------------------------> products.

Recall the formula below;

B= B° e^-kt.

Therefore, e^-kt = B/B°.

-kt = ln B/B°.

kt= ln B°/B.

Where B° and B are the amount of the initial concentration and the amount of the concentration remaining, k is the rate constant and t = time taken for the concentration to decrease.

So, we have; time taken,t = ln( 0.860/.310)/0.500.

==> ln 2.77/0.500.

==> time taken,t =2.038 seconds.

6 0
3 years ago
Which of the following is NOT a method of transferring heat?
Eva8 [605]
The answer is Reduction. All three methods (convection, radiation, and conduction) are all ways of transferring heat. Convection is the transfer of heat by means of a medium such as air. Conduction is the transfer of heat from the contact of two surfaces at different temperatures. Radiation is the transfer of heat via electromagnetic waves.

Reduction is a chemical reaction that involves the gain of electrons. It is the opposite of oxidation which involves the loss of electrons.
5 0
3 years ago
Which three elements affect air pressure?
Sloan [31]
A sorry if it’s wrong good luck
8 0
3 years ago
Other questions:
  • Reactions that absorb thermal energy are called blank reactions
    6·1 answer
  • Muscles convert chemical energy into
    9·1 answer
  • Advantages and disadvantages of chemical agents
    9·1 answer
  • What is the molality of a solution made by dissolving 137.9g of sucrose in 414.1g of water? The density of the solution is 1.104
    11·1 answer
  • Calculate the entropy change when a. two moles of H2O(g) are cooled irreversibly at constant p from 120°C to 100°C. b. one mole
    9·1 answer
  • A student reports the density of an article to be 1.92 g/mL. The accepted value of density is 1.89 g/mL. Calculate the student's
    13·1 answer
  • An unknown substance has the following properties:
    11·2 answers
  • C3H8+3O2 = 3CO2+4H2O what is the enthalpy combustion
    10·1 answer
  • The nonmetals helium, neon, and argon and the metals copper, silver, and gold are among only a few elements that are found in na
    9·1 answer
  • I really need help with this. Be serious. If you answer something random just for the points I will report you to brainly.
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!