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Vinvika [58]
3 years ago
9

Zinc blende, or sphalerite, can be described as having a face-centered cubic unit cell with sulfur atoms at each lattice point a

nd four zinc atoms within the unit cell. What is the empirical formula for this material? Follow standard convention for writing an empirical formula (ex. for AlCl3 enter AlCl3 not Cl3Al).

Chemistry
1 answer:
g100num [7]3 years ago
7 0

Answer:

ZnS  

Explanation:

1. Number of Zn atoms

4 internal atoms = 4 Zn atoms

2. Number of S atoms

8 corners × ⅛ S atom/corner + 6 faces × ½ S atom/face = 1 S atom + 3 S atoms = 4 S atoms

3. Empirical formula

The atomic ratio is

4Zn:4S = 1Zn:1S

The empirical formula is ZnS.

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Leokris [45]

Ocean currents determine the various directions of wind movement.

<h3>What is ocean current?</h3>

Ocean currents are caused by differences in density as well as the temperature of the moving winds across the ocean. In the ocean, warm water is found at the top while cooler water occurs far below.

Warm ocean currents originate near the equator and move towards the poles. The ocean currents control the direction of winds in an area.

Learn more about ocean currents: brainly.com/question/20823678

7 0
2 years ago
Which statement best describes a property of a compound? A compound is made up of a single atom. B. A compound is made up of man
Pavlova-9 [17]

Answer:

D. A compound can be separated into two or more elements through a chemical reaction.

Explanation:

By method of elimination, we are going t obtain the correct  option.

A. A compound is made up of a single atom.

This is wrong because, a compound can contain more than one atom.  An example is H2O

B. A compound is made up of many atoms that are all the same type.

This is wrong because a compound can contain atoms of different elements. An example is H2O. It contains atoms of hydrogen and oxygen.

C. A compound can be separated into two or more elements through physical processes.

This is wrong. H2O being a compound cannot be separated by ordinary physical means.

D. A compound can be separated into two or more elements through a chemical reaction.

This is the correct option.

5 0
3 years ago
A container with two gases, helium and argon, is 30.0% helium. Calculate the partial pressure of helium and
iVinArrow [24]

Answer:

helium=1,2atm

argon=2,8atm

Explanation:

partial is pressure exerted by each gas in a system since 30% is helium it means 70% is argon

argon =70%x4

helium=30%4

4 0
2 years ago
What is the answer??
Alex73 [517]

Answer:

maybe Ga hope this helps and have a wonderful day

6 0
3 years ago
4 and 5 pleaseeee<br> i’ll give brainly
nikitadnepr [17]

Answer:

4.

A. Proton= Positive charge

B. Neutron= Neutral or no charge

C. Electron= Negative charge

5.

Protons and Neutrons are found in the nucleus.

Hope this helps!

5 0
2 years ago
Read 2 more answers
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