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
Tanzania [10]
3 years ago
11

Workout the formula for:Magnesium Bromide Potassium Chloride ​

Chemistry
1 answer:
madam [21]3 years ago
8 0
Magnesium bromide= MgBr2
Potassium chloride= KCl
You might be interested in
Rank the following compounds in order of decreasing boiling point: potassium fluoride (KF), acetylene (C2H2), and formaldehyde (
otez555 [7]

Answer: KF > CH_2O > C_2H_2

Explanation:

The order of boiling point depends upon the type of interactions present between the molecules.

Potassium fluoride (KF) is an ionic compound and the opposite ions are held together by strong electrostatic forces.

C_2H_2 is a covalent compound and the molecules are held together by weak van der Waals' forces.

Formaldehyde is a polar compound due to presence of polar carbonyl group. Hence dipole-dipole force is present between formaldehyde molecules.

Thus the decreasing order of boiling point is:

KF > CH_2O > C_2H_2

8 0
2 years ago
The mole concept will most likely be used in
777dan777 [17]

Answer:

determining how many ozone molecules are lost in the atmosphere

6 0
3 years ago
When the atmosphere has too much carbon dioxide in it, the oceans absorb some of it to achieve a new balance. This is an example
Nana76 [90]
Answer: sphere interaction

The ocean absorbing excess carbon dioxide from the atmosphere in order to maintain balance is an example of sphere interaction. The different spheres like lithosphere, hydrosphere, atmosphere, and geosphere interact with one another naturally to achieve equilibrium in the environment. 

3 0
3 years ago
Read 2 more answers
A sample of an alloy of aluminum contains 0.0898 mol Al and 0.0381 mol Mg. What are the mass percentages of Al and Mg in the all
blondinia [14]

Answer:

Al 72.61%

Mg 27.39%

Explanation:

To obtain the mass percentages, we need to place the individual masses over the total mass and multiply by 100%.

If we observe clearly, we can see that the parameters given are the moles. We need to convert the moles to mass.

To do this ,we need to multiply the moles by the atomic masses. The atomic mass of aluminum is 27 while that of magnesium is 24.

Now, the mass of aluminum is thus = 27 * 0.0898 = 2.4246g

The mass of magnesium is 0.0381 * 24 = 0.9144g

We can now calculate the mass percentage.

The total mass is 0.9144 + 2.4246 = 3.339g

% mass of Al = 2.4246/3.339 * 100 = 72.61%

% mass of Mg = 0.9144/3.39 * 100 = 27.39%

7 0
3 years ago
Read 2 more answers
According to the law of conservation of mass, mass is neither created nor destroyed in any ordinary chemical reaction. Which of
sladkih [1.3K]

There are no options provided, therefor I cannot answer the question.

4 0
3 years ago
Other questions:
  • Based on the chart, determine the identity of a substance that increases in temperature by 11.4oC when 1250J of energy are added
    13·1 answer
  • If you fill your car tire to a pressure of 32 psi (pounds per square inch) on a hot summer day when the temperature is 35°C (95°
    14·1 answer
  • a nuclide of 64/29 cu absorbs a positron. witch is the resulting atom? (A) 65/29Cu (B) 63/29 CU (C) 64/28Ni (D) 64/30 Zn
    14·1 answer
  • Explain, in terms of element classification, why KBr is an ionic compound
    14·1 answer
  • For the reaction A(g) + 2 B(g) ↔ C(g) the initial partial pressures of gases A, B, and C are all 0.109 atm. Once equilibrium has
    5·1 answer
  • _____ is a gel-like substance enclosed by the cell membrane that contains the cell's organelles. A) chloroplast B) cytoplasm C)
    6·2 answers
  • How does an adaptation begin?
    5·2 answers
  • How can a chemical reaction be sped up?
    5·2 answers
  • Which statements correctly describe sound ( select all that apply)
    9·1 answer
  • A 7.74 L balloon is filled with water at 3.88 atm. If the balloon is squeezed into a 0.23 L beaker and does NOT burst, what is t
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!